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Mercer County, New Jersey (NJ)

County population in 2023: 381,671 (97% urban, 3% rural); it was 350,761 in 2000
County owner-occupied with a mortgage or a loan houses and condos in 2010: 64,356
County owner-occupied free and clear houses and condos in 2010: 23,344
County owner-occupied houses and condos in 2000: 84,325
Renter-occupied apartments: 45,455 (it was 41,482 in 2000)
% of renters here:

33%
State:

35%

Land area: 226 sq. mi.

Water area: 2.9 sq. mi.

Population density: 1689 people per square mile   (very high).

December 2024 cost of living index in Mercer County: 111.1 (more than average, U.S. average is 100)

Industries providing employment: Educational, health and social services (23.1%), Professional, scientific, management, administrative, and waste management services (14.3%).

Type of workers:

  • Private wage or salary: 83%
  • Government: 13%
  • Self-employed, not incorporated: 4%
  • Unpaid family work: 0%
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Based on 2000-2023 data
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  • Races in Mercer County, NJ (2023)
    • 161,71642.4%White Non-Hispanic Alone
    • 89,03523.3%Hispanic or Latino
    • 69,61318.2%Black Non-Hispanic Alone
    • 48,14112.6%Asian alone
    • 11,5683.0%Two or more races
    • 1,3950.4%Some other race alone
    • 2030.05%American Indian and Alaska Native alone
Median resident age:

40.2 years
New Jersey median age:

40.4 years
Males: 188,165  (49.3%)
Females: 193,506  (50.7%)
Mercer County, NJ forum
Recent posts about Mercer County, New Jersey on our local forum with over 2,500,000 registered users. Mercer County is mentioned 1,110 times on our forum:
How are non-major cell phone carriers in Mercer County?  (12 replies)
NJ Real Estate Market.  (124 replies)
NJ Covid Vaccine Rollout  (1062 replies)
Panhandler at Short Hills Mall  (44 replies)
General NJ COVID-19 Thread  (1091 replies)
NJ Cities/Large Suburbs, Ranked  (56 replies)
Average household size:
Mercer County:

2.0 people
New Jersey:

3 people

Estimated median household income in 2023: $96,152 ($56,612 in 1999)
This county:

$96,152
New Jersey:

$99,781

Median contract rent in 2023 for apartments: $1,354 (lower quartile is $986, upper quartile is $1,853)
This county:

$1354
State:

$1498


Estimated median house or condo value in 2023: $390,900 (it was $143,600 in 2000)
Mercer:

$390,900
New Jersey:

$461,000
Lower value quartile - upper value quartile: $256,100 - $619,100

Mean price in 2023:

Detached houses: $550,094
Here:

$550,094
State:

$577,222

Townhouses or other attached units: $282,118
Here:

$282,118
State:

$405,342

In 2-unit structures: $593,140
Here:

$593,140
State:

$486,852

In 3-to-4-unit structures: $330,051
Here:

$330,051
State:

$452,487

In 5-or-more-unit structures: $245,135
Here:

$245,135
State:

$419,972

Mobile homes: $81,364
Here:

$81,364
State:

$187,764

Median monthly housing costs for homes and condos with a mortgage: $2,498
Median monthly housing costs for units without a mortgage: $1,074

Institutionalized population: 6,065

Crime in 2023 (reported by the sheriff's office or county police, not the county total):

  • Murders: 0
  • Rapes: 0
  • Robberies: 0
  • Assaults: 3
  • Burglaries: 0
  • Thefts: 5
  • Auto thefts: 0

Crime in 2022 (reported by the sheriff's office or county police, not the county total):

  • Murders: 0
  • Rapes: 0
  • Robberies: 0
  • Assaults: 1
  • Burglaries: 0
  • Thefts: 6
  • Auto thefts: 1
Mercer County, NJ map from a distance

Health of residents in Mercer County based on CDC Behavioral Risk Factor Surveillance System Survey Questionnaires from 2003 to 2012:

General health status score of residents in this county from 1 (poor) to 5 (excellent) is 3.6. This is about average.
74.4% of residents exercised in the past month. This is about average.
43.7% of residents smoked 100+ cigarettes in their lives. This is about average.
73.5% of adult residents drank alcohol in the past 30 days. This is about average.
77.4% of residents visited a dentist within the past year. This is more than average.
Average weight of males is 193 pounds. This is about average.
Average weight of females is 164 pounds. This is about average.
11.1% of residents keep firearms around their homes. This is less than average.

Single-family new house construction building permits:

  • 2023: 402 buildings, average cost: $213,200
  • 2022: 165 buildings, average cost: $133,100
  • 2021: 278 buildings, average cost: $146,800
  • 2020: 220 buildings, average cost: $293,700
  • 2019: 181 buildings, average cost: $177,800
  • 2018: 180 buildings, average cost: $200,400
  • 2017: 152 buildings, average cost: $349,600
  • 2016: 175 buildings, average cost: $261,900
  • 2015: 284 buildings, average cost: $307,100
  • 2014: 239 buildings, average cost: $214,700
  • 2013: 191 buildings, average cost: $281,300
  • 2012: 110 buildings, average cost: $283,900
  • 2011: 135 buildings, average cost: $255,400
  • 2010: 180 buildings, average cost: $225,300
  • 2009: 178 buildings, average cost: $255,300
  • 2008: 325 buildings, average cost: $200,500
  • 2007: 466 buildings, average cost: $161,500
  • 2006: 578 buildings, average cost: $122,000
  • 2005: 1221 buildings, average cost: $107,200
  • 2004: 938 buildings, average cost: $115,300
  • 2003: 778 buildings, average cost: $93,300
  • 2002: 1126 buildings, average cost: $101,900
  • 2001: 1172 buildings, average cost: $100,400
  • 2000: 1210 buildings, average cost: $104,300
  • 1999: 1099 buildings, average cost: $102,300
  • 1998: 1200 buildings, average cost: $101,000
  • 1997: 1040 buildings, average cost: $101,500
Number of permits per 10,000 Mercer, NJ residents
Average permit cost in Mercer, NJ
Presidential Elections Results

Graphs represent county-level data. Detailed 2008 Election Results

Median real estate property taxes paid for housing units with mortgages in 2023: $8,937 (2.1%)
Median real estate property taxes paid for housing units with no mortgage in 2023: $8,159 (2.3%)

Distribution of median household income in Mercer, NJ in 2023
Distribution of house value in Mercer, NJ in 2023
Distribution of rent paid by renters in Mercer, NJ in 2023
Percentage of residents living in poverty in 2023: 10.8%
Mercer County:

10.8%
New Jersey:

9.7%
(8.7% for White Non-Hispanic residents, 12.6% for Black residents, 15.7% for Hispanic or Latino residents, 12.4% for American Indian residents, 20.5% for Native Hawaiian and other Pacific Islander residents, 17.1% for other race residents, 16.1% for two or more races residents)

Median age of residents in 2023: 40.2 years old
(Males: 39.2 years old, Females: 40.8 years old)
(Median age for: White residents: 48.4 years old, Black residents: 38.2 years old, American Indian residents: 23.2 years old, Asian residents: 40.6 years old, Hispanic or Latino residents: 30.3 years old, Other race residents: 34.1 years old)

Area name: Trenton-Ewing, NJ MSA
Fair market rent in 2006 for a 1-bedroom apartment in Mercer County is $850 a month.
Fair market rent for a 2-bedroom apartment is $1022 a month.
Fair market rent for a 3-bedroom apartment is $1221 a month.

Cities in this county include: Trenton, Ewing, Mercerville-Hamilton Square, Princeton, Mercerville, Hamilton Square, White Horse, Yardville-Groveville, Twin Rivers, Yardville.

Mercer County has a predicted average indoor radon screening level greater than 4 pCi/L (pico curies per liter) - Highest Potential

2023 air pollution in Mercer County:

Ozone (1-hour): 0.031 ppm (standard limit: 0.12 ppm). Near U.S. average.
Particulate Matter (PM2.5) Annual: 10.5 µg/m3(standard limit: 15.0 µg/m3). Near U.S. average.

Click to draw/clear Mercer County borders

Neighboring counties: Blackford County, Indiana , Dauphin County, Pennsylvania , Guernsey County, Ohio , Harrison County, Ohio , Sullivan County, Missouri .

Unemployment in November 2024:
Here:

3.6%
New Jersey:

4.2%

Unemployment by year in Mercer, NJ
County total employment by year in Mercer, NJ
County average yearly wages by year in Mercer, NJ

Current college students: 28,687
People 25 years of age or older with a high school degree or higher: 89.1%
People 25 years of age or older with a bachelor's degree or higher: 45.2%

Number of foreign born residents: 106,039 (45.1% naturalized citizens)

Mercer County:

27.8%
Whole state:

24.2%
Year of entry for the foreign-born population
  • Year of entry for the foreign-born population
  • 46,4032010 or later
  • 23,3462000 to 2009
  • 19,2541990 to 1999
  • 10,9531980 to 1989
  • 6,1171970 to 1979
  • 8,392Before 1970

Mean travel time to work (commute):  minutes

Percentage of county residents living and working in this county: 90.8%

Mercer County marital status for males Mercer County marital status for females

Housing units in structures:

  • One, detached: 68,505
  • One, attached: 34,803
  • Two: 5,397
  • 3 or 4: 6,021
  • 5 to 9: 7,088
  • 10 to 19: 12,715
  • 20 to 49: 5,271
  • 50 or more: 11,152
  • Mobile homes: 310

Housing units in Mercer County with a mortgage: 53,374 (5,444 second mortgage, 149 home equity loan, 4,315 both second mortgage and home equity loan)
Houses without a mortgage: 2,303

Here:

96.4% with mortgage
State:

96.0% with mortgage

Religion statistics for Mercer County

Religions Adherents in 2010
Religions Adherents - Change between 2000 and 2010
ReligionAdherentsCongregations
Catholic121,65026
Mainline Protestant29,63886
Evangelical Protestant17,27491
Other17,11538
Black Protestant5,14630
Orthodox1,9605
None173,730-
Mercer County Religion Details
Source: Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E.Jones, Alexei Krindatch, Richie Stanley and Richard H.Taylor. 2012. 2010 U.S.Religion Census: Religious Congregations & Membership Study. Association of Statisticians of American Religious Bodies. Jones, Dale E., et al. 2002. Congregations and Membership in the United States 2000. Nashville, TN: Glenmary Research Center.

Food Environment Statistics:

Number of grocery stores: 107
Mercer County:

2.94 / 10,000 pop.
State:

2.90 / 10,000 pop.

Number of supercenters and club stores: 2
Here:

0.05 / 10,000 pop.
New Jersey:

0.06 / 10,000 pop.

Number of convenience stores (no gas): 55
This county:

1.51 / 10,000 pop.
New Jersey:

1.76 / 10,000 pop.

Number of convenience stores (with gas): 23
Mercer County:

0.63 / 10,000 pop.
New Jersey:

0.81 / 10,000 pop.

Number of full-service restaurants: 270
This county:

7.42 / 10,000 pop.
State:

7.15 / 10,000 pop.

Adult diabetes rate:
Mercer County:

8.3%
New Jersey:

8.3%

Adult obesity rate:
Mercer County:

22.2%
State:

23.3%

Low-income preschool obesity rate:
Here:

20.1%
State:

18.0%

Agriculture in Mercer County:

Average size of farms: 82 acres
Average value of agricultural products sold per farm: $40,286
Average value of crops sold per acre for harvested cropland: $676.39
The value of nursery, greenhouse, floriculture, and sod as a percentage of the total market value of agricultural products sold: 50.01%
The value of livestock, poultry, and their products as a percentage of the total market value of agricultural products sold: 10.96%
Average total farm production expenses per farm: $50,113
Harvested cropland as a percentage of land in farms: 64.30%
Average market value of all machinery and equipment per farm: $45,689
The percentage of farms operated by a family or individual: 86.84%
Average age of principal farm operators: 56 years
Average number of cattle and calves per 100 acres of all land in farms: 2.14
Corn for grain: 3159 harvested acres
All wheat for grain: 646 harvested acres
Soybeans for beans: 8244 harvested acres
Vegetables: 722 harvested acres
Land in orchards: 120 acres

Earthquake activity:

Mercer County-area historical earthquake activity is significantly above New Jersey state average. It is 68% smaller than the overall U.S. average.

On 8/23/2011 at 17:51:04, a magnitude 5.8 (5.8 MW, Depth: 3.7 mi, Class: Moderate, Intensity: VI - VII) earthquake occurred 237.1 miles away from Mercer County center
On 1/16/1994 at 01:49:16, a magnitude 4.6 (4.6 MB, 4.6 LG, Depth: 3.1 mi, Class: Light, Intensity: IV - V) earthquake occurred 70.1 miles away from the county center
On 10/7/1983 at 10:18:46, a magnitude 5.3 (5.1 MB, 5.3 LG, 5.1 ML) earthquake occurred 256.6 miles away from the county center
On 1/16/1994 at 00:42:43, a magnitude 4.2 (4.2 MB, 4.0 LG, Depth: 3.1 mi) earthquake occurred 68.5 miles away from the county center
On 4/20/2002 at 10:50:47, a magnitude 5.3 (5.3 ML, Depth: 3.0 mi) earthquake occurred 299.1 miles away from Mercer County center
On 11/30/2017 at 21:47:31, a magnitude 4.1 (4.1 MW, Depth: 6.1 mi) earthquake occurred 82.4 miles away from the county center
Magnitude types: regional Lg-wave magnitude (LG), body-wave magnitude (MB), local magnitude (ML), moment magnitude (MW)

Most recent natural disasters:

  • New Jersey Covid-19 Pandemic, Incident Period: January 20, 2020, Major Disaster (Presidential) Declared DR-4488-NJ: March 25, 2020, FEMA Id: 4488, Natural disaster type: Other
  • New Jersey Severe Winter Storm and Snowstorm, Incident Period: January 22, 2016 to January 24, 2016, Major Disaster (Presidential) Declared DR-4264: March 14, 2016, FEMA Id: 4264, Natural disaster type: Snowstorm, Winter Storm
  • New Jersey Hurricane Sandy, Incident Period: October 26, 2012 to November 08, 2012, Emergency Declared EM-3354: October 28, 2012, FEMA Id: 3354, Natural disaster type: Hurricane
  • New Jersey Hurricane Sandy, Incident Period: October 26, 2012 to November 08, 2012, Major Disaster (Presidential) Declared DR-4086: October 30, 2012, FEMA Id: 4086, Natural disaster type: Hurricane
  • New Jersey Remnants of Tropical Storm Lee, Incident Period: September 28, 2011 to October 06, 2011, Major Disaster (Presidential) Declared DR-4039: October 14, 2011, FEMA Id: 4039, Natural disaster type: Tropical Storm
  • New Jersey Hurricane Irene, Incident Period: August 27, 2011 to September 05, 2011, Major Disaster (Presidential) Declared DR-4021: August 31, 2011, FEMA Id: 4021, Natural disaster type: Hurricane
  • New Jersey Hurricane Irene, Incident Period: August 26, 2011 to September 05, 2011, Emergency Declared EM-3332: August 27, 2011, FEMA Id: 3332, Natural disaster type: Hurricane
  • New Jersey Severe Winter Storm and Snowstorm, Incident Period: December 26, 2010 to December 27, 2010, Major Disaster (Presidential) Declared DR-1954: February 04, 2011, FEMA Id: 1954, Natural disaster type: Snowstorm, Winter Storm
  • New Jersey Severe Storms and Flooding, Incident Period: March 12, 2010 to April 15, 2010, Major Disaster (Presidential) Declared DR-1897: April 02, 2010, FEMA Id: 1897, Natural disaster type: Storm, Flood
  • New Jersey Severe Storms and Inland and Coastal Flooding, Incident Period: April 14, 2007 to April 20, 2007, Major Disaster (Presidential) Declared DR-1694: April 26, 2007, FEMA Id: 1694, Natural disaster type: Storm, Flood
  • 18 other natural disasters have been reported since 1953.

The number of natural disasters in Mercer County (28) is greater than the US average (19).
Major Disasters (Presidential) Declared: 16
Emergencies Declared: 9

Causes of natural disasters: Hurricanes: 9, Floods: 5, Storms: 4, Snowstorms: 3, Blizzards: 2, Heavy Rains: 2, Water Shortages: 2, Winter Storms: 2, Tornado: 1, Tropical Depression: 1, Tropical Storm: 1, Wind: 1, Other: 4 (Note: some incidents may be assigned to more than one category).
Means of transportation to work in 2023 - Mercer

Means of transportation to work:

  • Drove a car alone: 165,507 (71.4%)
  • Carpooled: 17,722 (7.6%)
  • Bus: 2,314 (1.0%)
  • Subway or elevated rail: 773 (0.3%)
  • Long-distance train or commuter rail: 864 (0.4%)
  • Light rail, streetcar or trolley: 211 (0.1%)
  • Taxicab, motorcycle, or other means: 6,190 (2.7%)
  • Bicycle: 1,894 (0.8%)
  • Walked: 7,288 (3.1%)
  • Worked at home: 29,172 (12.6%)
Class of Workers in 2023
Most common industries in 2023 (%)
Males Females
Most common industries for males in 2023


  • Educational services (14%)
  • Health care and social assistance (14%)
  • Manufacturing (9%)
  • Professional, scientific, and technical services (8%)
  • Retail trade (7%)
  • Finance and insurance (6%)
  • Public administration (6%)

Most common industries for females in 2023


  • Educational services (16%)
  • Health care and social assistance (15%)
  • Manufacturing (10%)
  • Professional, scientific, and technical services (9%)
  • Retail trade (7%)
  • Finance and insurance (6%)
  • Public administration (6%)

Most common occupations in 2023 (%)
Males Females
Most common occupations for males in 2023


  • Management occupations (16%)
  • Computer and mathematical occupations (9%)
  • Construction and extraction occupations (7%)
  • Business and financial operations occupations (7%)
  • Sales and related occupations (7%)
  • Educational instruction, and library occupations (6%)
  • Office and administrative support occupations (6%)

Most common occupations for females in 2023


  • Office and administrative support occupations (15%)
  • Management occupations (14%)
  • Educational instruction, and library occupations (11%)
  • Business and financial operations occupations (8%)
  • Sales and related occupations (5%)
  • Food preparation and serving related occupations (5%)
  • Health diagnosing and treating practitioners and other technical occupations (5%)

Most common places of birth for foreign-born residents


  • India (18%)
  • Guatemala (15%)
  • Dominican Republic (6%)
  • China, excluding Hong Kong and Taiwan (5%)
  • Ecuador (4%)
  • Haiti (3%)
  • Colombia (3%)

Most common first ancestries reported in Mercer County


  • Italian (7%)
  • Irish (5%)
  • Polish (3%)
  • German (3%)
  • American (3%)
  • English (3%)
  • Haitian (1%)

Owners and renters by unit type
Breakdown of mean house values by ages of householders

People in group quarters in Mercer County, New Jersey in 2010:

  • 11,254 people in college/university student housing
  • 2,699 people in nursing facilities/skilled-nursing facilities
  • 2,660 people in state prisons
  • 619 people in correctional residential facilities
  • 497 people in emergency and transitional shelters (with sleeping facilities) for people experiencing homelessness
  • 347 people in other noninstitutional facilities
  • 316 people in group homes intended for adults
  • 165 people in residential treatment centers for adults
  • 161 people in workers' group living quarters and job corps centers
  • 36 people in correctional facilities intended for juveniles
  • 31 people in group homes for juveniles (non-correctional)
  • 20 people in residential treatment centers for juveniles (non-correctional)

People in group quarters in Mercer County, New Jersey in 2000:

  • 12,207 people in college dormitories (includes college quarters off campus)
  • 3,263 people in state prisons
  • 2,243 people in nursing homes
  • 878 people in local jails and other confinement facilities (including police lockups)
  • 759 people in other noninstitutional group quarters
  • 550 people in mental (psychiatric) hospitals or wards
  • 308 people in other nonhousehold living situations
  • 175 people in homes for the mentally retarded
  • 166 people in religious group quarters
  • 136 people in homes or halfway houses for drug/alcohol abuse
  • 124 people in other group homes
  • 77 people in unknown juvenile institutions
  • 65 people in short-term care, detention or diagnostic centers for delinquent children
  • 60 people in homes for the mentally ill
  • 41 people in halfway houses
  • 18 people in training schools for juvenile delinquents
  • 13 people in wards in general hospitals for patients who have no usual home elsewhere
  • 5 people in homes for the physically handicapped
  • 3 people in agriculture workers' dormitories on farms
Average gross adjusted income of non-migrant taxpayers in this county in 2020 was $113,274.

6.32% of this county's 2021 resident taxpayers lived in other counties in 2020 ($101,265 average adjusted gross income)

Here:

6.32%
New Jersey average:

6.70%


0.02% of residents moved from foreign countries ($112 average AGI)
Mercer County:

0.02%
New Jersey average:

0.01%

3.33% relocated from other counties in New Jersey ($52,075 average AGI)
2.97% relocated from other states ($49,079 average AGI)
Mercer County:

2.97%
New Jersey average:

2.98%

Residents relocating <b>from</b> other counties or countries

Top counties from which taxpayers relocated into this county between 2020 and 2021:
from Middlesex County, NJ  1.08% ($99,803 average AGI)
from Burlington County, NJ  0.49% ($60,018)
from Bucks County, PA  0.30% ($68,822)
from Somerset County, NJ  0.29% ($117,761)
from Monmouth County, NJ  0.24% ($141,398)
from New York County, NY  0.24% ($165,083)
from Hudson County, NJ  0.23% ($171,139)


7.01% of this county's 2020 resident taxpayers moved to other counties in 2021 ($114,313 average adjusted gross income)

Here:

7.01%
New Jersey average:

7.02%


0.02% of residents moved to foreign countries ($141 average AGI)
Mercer County:

0.02%
New Jersey average:

0.02%

3.20% relocated to other counties in New Jersey ($42,609 average AGI)
3.80% relocated to other states ($71,562 average AGI)
Mercer County:

3.80%
New Jersey average:

3.32%

Residents relocating <b>to</b> other counties or countries

Top counties to which taxpayers relocated from this county between 2020 and 2021:
to Burlington County, NJ  1.00% ($66,135 average AGI)
to Middlesex County, NJ  0.66% ($94,480)
to Bucks County, PA  0.44% ($115,462)
to Monmouth County, NJ  0.25% ($154,094)
to Ocean County, NJ  0.24% ($102,151)
to Somerset County, NJ  0.22% ($122,317)
to Philadelphia County, PA  0.20% ($76,503)

Births per 1000 population from 1990 to 1999: 13.9
Births per 1000 population from 2000 to 2009: 12.9
Births per 1000 population from 2010 to 2022: 9.6

Births per 1000 population in Mercer County

Deaths per 1000 population from 1990 to 1999: 8.8
Deaths per 1000 population from 2000 to 2009: 7.9
Deaths per 1000 population from 2010 to 2020: 8.0

Deaths per 1000 population in Mercer County

Infant deaths per 1000 live births from 1990 to 1999: 8.8
Infant deaths per 1000 live births from 2000 to 2009: 7.7
Infant deaths per 1000 live births from 2010 to 2021: 6.2

Infant deaths per 1000 population in Mercer County
Population without health insurance coverage in 2018: 9.2%
Persons under 19 years old without health insurance coverage in 2018: 4.0%
Percentage of population without health insurance coverage in Mercer County
All 18-64 40-64 50-64 Under 19
Population without health insurance coverage in Mercer County
18-64 population without health insurance coverage in Mercer County
40-64 population without health insurance coverage in Mercer County
50-64 population without health insurance coverage in Mercer County
Population under 19 years without health insurance coverage in Mercer County

Persons enrolled in hospital insurance and/or supplemental medical insurance (Medicare) in July 1, 2007: 53,116 (43,678 aged, 9,438 disabled)
Children under 18 without health insurance coverage in 2007: 9,942 (11%)
Persons enrolled in Medicare
Aged persons enrolled in Medicare
Disabled persons enrolled in Medicare

Most common underlying causes of death in Mercer County, New Jersey in 1999 - 2019:

  • Atherosclerotic heart disease (4,607)
  • Acute myocardial infarction, unspecified (3,282)
  • Bronchus or lung, unspecified - Malignant neoplasms (3,259)
  • Unspecified dementia (1,960)
  • Atherosclerotic cardiovascular disease, so described (1,891)
  • Chronic obstructive pulmonary disease, unspecified (1,867)
  • Septicaemia, unspecified (1,542)
  • Stroke, not specified as haemorrhage or infarction (1,405)
  • Alzheimer disease, unspecified (1,161)
  • Breast, unspecified - Malignant neoplasms (1,156)

Population without health insurance coverage in 2000: 12%
Children under 18 without health insurance coverage in 2000: 8%

Short term general hospitals per 100,000 population in 2004: 1.37
Short term general hospital admissions per 100,000 population in 2004: 15,401
Short term general hospital beds per 100,000 population in 2004: 327
Emergency room visits per 100,000 population in 2004: 52,025

General practice office based MDs per 100,000 population in 2005: 1,166
Medical specialist MDs per 100,000 population in 2005: 716
Dentists per 100,000 population in 1998: 19

Total births per 100,000 population, July 2005 - July 2006 : 60
Total deaths per 100,000 population, July 2005 - July 2006: 94

Limited-service eating places per 100,000 population in 2005 : 18
Beer, wine & liquor stores per 100,000 population in 2005: 1

EPA green book nonattainment status in 2004-2006: 1

Homicides per 1,000,000 population from 2000 to 2006: 69.4. This is more than state average.

Mechanisms of homicide
Deaths per 1,000,000 population:
  • Firearm - 39.5
  • Cut/Pierce - 9.2
  • Transportation-Related, Overall - 9.2
  • Terrorism - 9.2
  • Other - 2.4

Suicides per 1,000,000 population from 2000 to 2006: 57.9. This is less than state average.

Mechanisms of suicide
Deaths per 1,000,000 population:
  • Suffocation - 23.5
  • Firearm - 16.0
  • Poisoning - 12.4
  • Other - 6.0

Household type by relationship:

Households: 381,671
  • Male householders: 73,653 (16,659 living alone), Female householders: 72,605 (24,374 living alone)
  • 67,049 spouses (66,549 opposite-sex spouses), 8,989 unmarried partners, (8,536 opposite-sex unmarried partners), 103,571 children (99,580 natural, 1,055 adopted, 2,936 stepchildren), 9,279 grandchildren, 4,759 brothers or sisters, 6,333 parents, 0 foster children, 8,798 other relatives, 9,634 non-relatives
  • In group quarters: 17,001

Size of family households: 40,303 2-persons, 26,049 3-persons, 18,844 4-persons, 7,415 5-persons, 2,318 6-persons, 2,684 7-or-more-persons.

Size of nonfamily households: 41,033 1-person, 5,885 2-persons, 1,034 3-persons, 459 4-persons, 201 5-persons, 33 6-persons.

49,371 married couples with children.
21,548 single-parent households (3,449 men, 18,099 women).

63.4% of residents of Mercer speak English at home.
19.1% of residents speak Spanish at home (39% speak English very well, 20% speak English well, 22% speak English not well, 19% don't speak English at all).
9.7% of residents speak other Indo-European language at home (71% speak English very well, 15% speak English well, 11% speak English not well, 2% don't speak English at all).
6.1% of residents speak Asian or Pacific Island language at home (76% speak English very well, 17% speak English well, 6% speak English not well, 1% don't speak English at all).
1.7% of residents speak other language at home (64% speak English very well, 32% speak English well, 4% speak English not well).

In fiscal year 2004:

Federal Government expenditure: $4,071,875,000 ($11,148 per capita)
Department of Defense expenditure: $218,209,000
Federal direct payments to individuals for retirement and disability: $964,944,000
Federal other direct payments to individuals: $530,406,000
Federal direct payments not to individuals: $20,131,000
Federal grants: $2,045,978,000
Federal procurement contracts: $323,074,000 ($123,476,000 Department of Defense)
Federal salaries and wages: $187,343,000 ($26,143,000 Department of Defense)
Federal Government direct loans: $6,456,000
Federal guaranteed/insured loans: $209,469,000
Federal Government insurance: $209,248,000

Population change from April 1, 2000 to July 1, 2005:

Births: 24,081
Here:

66 per 1000 residents
State:

69 per 1000 residents

Deaths: 15,069
Here:

41 per 1000 residents
State:

44 per 1000 residents

Net international migration: +12,030
Here:

+33 per 1000 residents
State:

+33 per 1000 residents

Net internal migration: -5,065
Here:  -14 per 1000 residents
State:  -22 per 1000 residents
Population growth in Mercer County

Total withdrawal of fresh water for public supply: 40.88 millions of gallons per day (24% from ground, 76% from surface)

Median number of rooms in houses and condos:
Here:

6.8
State:

6.8

Median number of rooms in apartments:
Here:

4.0
State:

3.9

Year house built in Mercer County, New Jersey
  • Year house built in Mercer County, New Jersey
  • 1,8922020 or later
  • 7,4112010 to 2019
  • 14,4412000 to 2009
  • 13,8071990 to 1999
  • 20,1351980 to 1989
  • 18,7391970 to 1979
  • 19,7971960 to 1969
  • 21,8851950 to 1959
  • 6,6521940 to 1949
  • 26,5031939 or earlier
Rooms in houses/apartments in Mercer County, New Jersey
Owner-occupied Renter-occupied
Rooms in owner-occupied houses in Mercer County, New Jersey
  • Rooms in owner-occupied houses in Mercer County, New Jersey
  • 4041 room
  • 2952 rooms
  • 1,8103 rooms
  • 6,9954 rooms
  • 10,9965 rooms
  • 18,6306 rooms
  • 15,9367 rooms
  • 12,4668 rooms
  • 20,6519+ rooms
Rooms in renter-occupied apartments in Mercer County, New Jersey
  • Rooms in renter-occupied apartments in Mercer County, New Jersey
  • 3,2351 room
  • 2,6712 rooms
  • 13,3213 rooms
  • 18,1054 rooms
  • 11,1205 rooms
  • 3,9576 rooms
  • 2,6267 rooms
  • 1,5438 rooms
  • 1,4979+ rooms
Bedrooms in houses/apartments in Mercer County, New Jersey
Owner-occupied Renter-occupied
Bedrooms in owner-occupied houses in Mercer County, New Jersey
  • Bedrooms in owner-occupied houses in Mercer County, New Jersey
  • 502no bedroom
  • 1,3801 bedroom
  • 15,1192 bedrooms
  • 36,5093 bedrooms
  • 27,7084 bedrooms
  • 6,9655+ bedrooms
Bedrooms in renter-occupied apartments in Mercer County, New Jersey
  • Bedrooms in renter-occupied apartments in Mercer County, New Jersey
  • 3,579no bedroom
  • 18,8491 bedroom
  • 21,4032 bedrooms
  • 10,0443 bedrooms
  • 2,2894 bedrooms
  • 1,9115+ bedrooms
Cars and other vehicles available in Mercer County, New Jersey in houses/condos/apartments
Owner-occupied Renter-occupied
Cars and other vehicles available in Mercer County in owner-occupied houses/condos
  • Cars and other vehicles available in Mercer County in owner-occupied houses/condos
  • 3,323no vehicle
  • 23,4781 vehicle
  • 41,3342 vehicles
  • 13,2143 vehicles
  • 4,0854 vehicles
  • 2,7495+ vehicles
Cars and other vehicles available in Mercer County in renter-occupied apartments
  • Cars and other vehicles available in Mercer County in renter-occupied apartments
  • 13,061no vehicle
  • 28,0101 vehicle
  • 14,2632 vehicles
  • 2,4173 vehicles
  • 974 vehicles
  • 2275+ vehicles

87.8% of Mercer County residents lived in the same house 1 years ago.
   Out of people who lived in different houses, 36% lived in this county.
   Out of people who lived in different counties, 54% lived in New Jersey.

Mercer County:

87.8%
State average:

90.6%

Place of birth for U.S.-born residents:

  • This state: 183,649
  • Other state: 81,813
  • Northeast: 45,487
  • Midwest: 9,694
  • South: 19,628
  • West: 7,004
Year householders moved into unit in Mercer County, NJ
Most commonly used house heating fuel in Mercer County
Houses and condos Apartments
Most commonly used house heating fuel in houses and condos
  • 77.2%Utility gas
  • 11.6%Electricity
  • 9.6%Fuel oil, kerosene, etc.
  • 1.0%Bottled, tank, or LP gas
  • 0.3%No fuel used
  • 0.2%Solar energy
  • 0.2%Other fuel
Most commonly used house heating fuel in apartments
  • 54.5%Utility gas
  • 38.8%Electricity
  • 2.6%Bottled, tank, or LP gas
  • 2.0%Fuel oil, kerosene, etc.
  • 1.2%No fuel used
  • 0.7%Other fuel

Private vs. public school enrollment:


Students in private schools in grades 1 to 8 (elementary and middle school): 3,396
Here:

9.6%
New Jersey:

12.4%

Students in private schools in grades 9 to 12 (high school): 1,585
Here:

7.8%
New Jersey:

12.5%

Students in private undergraduate colleges: 9,987
Here:

43.4%
New Jersey:

33.5%

Educational Attainment
School Enrollment by Level of School
Age and Sex of Sensory-Disabled Noninstitutionalized Residents
Age and Sex of Physically-Disabled Noninstitutionalized Residents
Age and Sex of Mentally-Disabled Noninstitutionalized Residents
Age and Sex of Self-Care Disabled Noninstitutionalized Residents
Age and Sex of Go-Outside-Home Disabled Noninstitutionalized Residents
Age and Sex of Noninstitutionalized Residents with Employment Disability

Mercer County government finances - Expenditure in 2022:

  • Assistance and Subsidies - State Scholarships and Other Subsidies - Education: $-3,301,000
  • Charges - Solid Waste Management: $32,933,000
    Higher Education - Other: $24,974,000
    Other: $13,093,000
    Parks and Recreation: $6,168,000
    Air Transportation: $5,283,000
    Elementary and Secondary Education - Other: $4,958,000
    Elementary and Secondary Education School Tuition and Transportation: $3,332,000
    Higher Education Auxiliary Enterprises: $952,000
    Elementary and Secondary Education School Lunch: $56,000
  • Construction - Other Higher Education: $6,554,000
    Elementary and Secondary Education: $2,328,000
    General - Other: $2,284,000
  • Current Operations - General - Other: $95,957,000
    Public Welfare - Other: $73,737,000
    Other Higher Education: $71,729,000
    Elementary and Secondary Education: $57,120,000
    Correctional Institutions: $31,308,000
    Police Protection: $19,593,000
    Judicial and Legal Services: $19,531,000
    Central Staff Services: $15,307,000
    Parks and Recreation: $15,201,000
    Regular Highways: $7,844,000
    Solid Waste Management: $7,294,000
    General Public Buildings: $6,437,000
    Air Transportation: $5,402,000
    Health - Other: $4,715,000
    Financial Administration: $2,201,000
    Housing and Community Development: $651,000
    Higher Education Auxiliary Enterprises: $308,000
    Sewerage: $24,000
  • Federal Intergovernmental - Other: $14,012,000
  • General - Interest on Debt: $14,076,000
  • Local Intergovernmental - Other: $54,236,000
  • Long Term Debt - Beginning Outstanding - Unspecified Public Purpose: $418,271,000
    Outstanding Unspecified Public Purpose: $386,161,000
    Retired Unspecified Public Purpose: $32,110,000
  • Miscellaneous - General Revenue - Other: $1,378,000
    Fines and Forfeits: $1,148,000
    Interest Earnings: $376,000
    Rents: $253,000
  • State Intergovernmental - Other: $88,312,000
  • Tax - Property: $277,421,000
  • Total Salaries and Wages: $32,551,000

Mercer County government finances - Revenue in 2022:

  • Assistance and Subsidies - State Scholarships and Other Subsidies - Education: $-3,301,000
  • Charges - Solid Waste Management: $32,933,000
    Higher Education - Other: $24,974,000
    Other: $13,093,000
    Parks and Recreation: $6,168,000
    Air Transportation: $5,283,000
    Elementary and Secondary Education - Other: $4,958,000
    Elementary and Secondary Education School Tuition and Transportation: $3,332,000
    Higher Education Auxiliary Enterprises: $952,000
    Elementary and Secondary Education School Lunch: $56,000
  • Construction - Other Higher Education: $6,554,000
    Elementary and Secondary Education: $2,328,000
    General - Other: $2,284,000
  • Current Operations - General - Other: $95,957,000
    Public Welfare - Other: $73,737,000
    Other Higher Education: $71,729,000
    Elementary and Secondary Education: $57,120,000
    Correctional Institutions: $31,308,000
    Police Protection: $19,593,000
    Judicial and Legal Services: $19,531,000
    Central Staff Services: $15,307,000
    Parks and Recreation: $15,201,000
    Regular Highways: $7,844,000
    Solid Waste Management: $7,294,000
    General Public Buildings: $6,437,000
    Air Transportation: $5,402,000
    Health - Other: $4,715,000
    Financial Administration: $2,201,000
    Housing and Community Development: $651,000
    Higher Education Auxiliary Enterprises: $308,000
    Sewerage: $24,000
  • Federal Intergovernmental - Other: $14,012,000
  • General - Interest on Debt: $14,076,000
  • Local Intergovernmental - Other: $54,236,000
  • Long Term Debt - Beginning Outstanding - Unspecified Public Purpose: $418,271,000
    Outstanding Unspecified Public Purpose: $386,161,000
    Retired Unspecified Public Purpose: $32,110,000
  • Miscellaneous - General Revenue - Other: $1,378,000
    Fines and Forfeits: $1,148,000
    Interest Earnings: $376,000
    Rents: $253,000
  • State Intergovernmental - Other: $88,312,000
  • Tax - Property: $277,421,000
  • Total Salaries and Wages: $32,551,000

Mercer County government finances - Debt in 2022:

  • Assistance and Subsidies - State Scholarships and Other Subsidies - Education: $-3,301,000
  • Charges - Solid Waste Management: $32,933,000
    Higher Education - Other: $24,974,000
    Other: $13,093,000
    Parks and Recreation: $6,168,000
    Air Transportation: $5,283,000
    Elementary and Secondary Education - Other: $4,958,000
    Elementary and Secondary Education School Tuition and Transportation: $3,332,000
    Higher Education Auxiliary Enterprises: $952,000
    Elementary and Secondary Education School Lunch: $56,000
  • Construction - Other Higher Education: $6,554,000
    Elementary and Secondary Education: $2,328,000
    General - Other: $2,284,000
  • Current Operations - General - Other: $95,957,000
    Public Welfare - Other: $73,737,000
    Other Higher Education: $71,729,000
    Elementary and Secondary Education: $57,120,000
    Correctional Institutions: $31,308,000
    Police Protection: $19,593,000
    Judicial and Legal Services: $19,531,000
    Central Staff Services: $15,307,000
    Parks and Recreation: $15,201,000
    Regular Highways: $7,844,000
    Solid Waste Management: $7,294,000
    General Public Buildings: $6,437,000
    Air Transportation: $5,402,000
    Health - Other: $4,715,000
    Financial Administration: $2,201,000
    Housing and Community Development: $651,000
    Higher Education Auxiliary Enterprises: $308,000
    Sewerage: $24,000
  • Federal Intergovernmental - Other: $14,012,000
  • General - Interest on Debt: $14,076,000
  • Local Intergovernmental - Other: $54,236,000
  • Long Term Debt - Beginning Outstanding - Unspecified Public Purpose: $418,271,000
    Outstanding Unspecified Public Purpose: $386,161,000
    Retired Unspecified Public Purpose: $32,110,000
  • Miscellaneous - General Revenue - Other: $1,378,000
    Fines and Forfeits: $1,148,000
    Interest Earnings: $376,000
    Rents: $253,000
  • State Intergovernmental - Other: $88,312,000
  • Tax - Property: $277,421,000
  • Total Salaries and Wages: $32,551,000

Mercer County government finances - Cash and Securities in 2022:

  • Assistance and Subsidies - State Scholarships and Other Subsidies - Education: $-3,301,000
  • Charges - Solid Waste Management: $32,933,000
    Higher Education - Other: $24,974,000
    Other: $13,093,000
    Parks and Recreation: $6,168,000
    Air Transportation: $5,283,000
    Elementary and Secondary Education - Other: $4,958,000
    Elementary and Secondary Education School Tuition and Transportation: $3,332,000
    Higher Education Auxiliary Enterprises: $952,000
    Elementary and Secondary Education School Lunch: $56,000
  • Construction - Other Higher Education: $6,554,000
    Elementary and Secondary Education: $2,328,000
    General - Other: $2,284,000
  • Current Operations - General - Other: $95,957,000
    Public Welfare - Other: $73,737,000
    Other Higher Education: $71,729,000
    Elementary and Secondary Education: $57,120,000
    Correctional Institutions: $31,308,000
    Police Protection: $19,593,000
    Judicial and Legal Services: $19,531,000
    Central Staff Services: $15,307,000
    Parks and Recreation: $15,201,000
    Regular Highways: $7,844,000
    Solid Waste Management: $7,294,000
    General Public Buildings: $6,437,000
    Air Transportation: $5,402,000
    Health - Other: $4,715,000
    Financial Administration: $2,201,000
    Housing and Community Development: $651,000
    Higher Education Auxiliary Enterprises: $308,000
    Sewerage: $24,000
  • Federal Intergovernmental - Other: $14,012,000
  • General - Interest on Debt: $14,076,000
  • Local Intergovernmental - Other: $54,236,000
  • Long Term Debt - Beginning Outstanding - Unspecified Public Purpose: $418,271,000
    Outstanding Unspecified Public Purpose: $386,161,000
    Retired Unspecified Public Purpose: $32,110,000
  • Miscellaneous - General Revenue - Other: $1,378,000
    Fines and Forfeits: $1,148,000
    Interest Earnings: $376,000
    Rents: $253,000
  • State Intergovernmental - Other: $88,312,000
  • Tax - Property: $277,421,000
  • Total Salaries and Wages: $32,551,000

Supplemental Security Income (SSI) in 2006:

  • Total number of recipients: 7,032
  • Number of aged recipients: 1,050
  • Number of blind and disabled recipients: 5,982
  • Number of recipients under 18: 1,395
  • Number of recipients between 18 and 64: 3,933
  • Number of recipients older than 64: 1,704
  • Number of recipients also receiving OASDI: 2,184
  • Amount of payments (thousands of dollars): 3,480
Home Mortgage Disclosure Act Aggregated Statistics For Year 2009
(Based on 72 full tracts)
A) FHA, FSA/RHS & VA
Home Purchase Loans		B) Conventional
Home Purchase Loans		C) Refinancings
D) Home Improvement Loans
E) Loans on Dwellings For 5+ Families
F) Non-occupant Loans on
< 5 Family Dwellings (A B C & D)		G) Loans On Manufactured
Home Dwelling (A B C & D)
NumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage Value
LOANS ORIGINATED1,227$206,5291,610$281,1377,891$253,274355$92,0658$5,524,125281$172,7261$150,000
APPLICATIONS APPROVED, NOT ACCEPTED61$199,918207$331,522762$237,74978$52,2052$207,50031$194,2580$0
APPLICATIONS DENIED229$186,271286$266,3083,097$237,902398$54,1384$3,828,250250$146,9324$36,500
APPLICATIONS WITHDRAWN133$176,421209$276,3111,985$245,70982$105,0000$083$265,0361$7,500,000
FILES CLOSED FOR INCOMPLETENESS40$218,50067$322,537464$252,24824$125,1250$018$138,7220$0
Choose year:  2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999
Private Mortgage Insurance Companies Aggregated Statistics For Year 2009
(Based on 65 full tracts)
A) Conventional
Home Purchase Loans		B) Refinancings
C) Non-occupant Loans on
< 5 Family Dwellings (A & B)
NumberAverage ValueNumberAverage ValueNumberAverage Value
LOANS ORIGINATED220$267,173120$277,6580$0
APPLICATIONS APPROVED, NOT ACCEPTED107$232,74868$263,2654$86,750
APPLICATIONS DENIED29$252,89753$274,5281$148,000
APPLICATIONS WITHDRAWN21$316,09519$294,1581$97,000
FILES CLOSED FOR INCOMPLETENESS7$239,4295$200,0001$180,000
Choose year:  2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999
Conventional Home Purchase Loans in Mercer, NJ
Conventional Home Purchase Loans in Mercer, NJ - Value
Most common first names in Mercer County, NJ among deceased individuals
NameCountLived (average)
John3,94374.0 years
Mary3,76880.3 years
Joseph2,64674.6 years
William2,38473.9 years
Helen1,91580.1 years
Anna1,90182.0 years
James1,63771.8 years
Elizabeth1,52480.8 years
George1,49374.7 years
Charles1,47174.7 years
Most common last names in Mercer County, NJ among deceased individuals
Last nameCountLived (average)
Smith78774.8 years
Johnson59572.2 years
Williams55371.5 years
Brown47572.3 years
Jones41772.5 years
Miller33575.5 years
Wilson30473.6 years
Davis29571.7 years
Taylor24674.7 years
Moore23273.6 years
Businesses in Mercer County, NJ
NameCountNameCount
7-Eleven16Kmart1
ALDI1Kohl's2
AT&T9Kroger1
Ace Hardware3La-Z-Boy1
Advance Auto Parts4Lane Bryant1
Aeropostale1Lane Furniture2
Aerosoles1LensCrafters2
American Eagle Outfitters1Long John Silver's1
Ann Taylor3Lowe's2
Applebee's2Macy's1
Arby's1Marriott3
Audi1Marshalls1
AutoZone3MasterBrand Cabinets23
Avenue2McDonald's8
BMW1Men's Wearhouse2
Banana Republic2Motherhood Maternity3
Barnes & Noble2New Balance10
Baskin-Robbins6New York & Co2
Bath & Body Works2Nike2
Bed Bath & Beyond2Nissan2
Blockbuster1Office Depot1
Brookstone1Old Navy2
Burger King9Olive Garden1
CVS15On The Border1
Cache1Outback1
Casual Male XL1Outback Steakhouse1
Charlotte Russe1Pac Sun1
Chick-Fil-A2Panera Bread3
Chico's2Papa John's Pizza2
Clarion1Payless8
Clarks1Penske2
Cold Stone Creamery2PetSmart2
Coldwater Creek1Pier 1 Imports2
Comfort Inn1Pizza Hut2
Cracker Barrel1Popeyes2
Cricket Wireless6Pottery Barn1
Curves1Pottery Barn Kids1
DHL5Quality1
Dairy Queen3Quiznos5
Days Inn1RadioShack8
Deb1Raymour & Flanigan1
Decora Cabinetry4Red Lobster1
Domino's Pizza6Red Robin1
DressBarn4Red Roof Inn1
Dressbarn4Rite Aid16
Dunkin Donuts33Ruby Tuesday2
Express1Sam's Club1
Extended Stay America1Sears3
Famous Footwear3Soma Intimates1
Fashion Bug1Spencer Gifts1
FedEx72Sprint Nextel4
Finish Line1Staples5
Firestone Complete Auto Care1Starbucks8
Foot Locker3Stop & Shop1
Ford3Subaru2
Forever 211Subway22
GNC9T-Mobile4
GameStop5T.G.I. Driday's3
Gap3T.J.Maxx2
Goodwill10Taco Bell5
Gymboree3Talbots2
H&R Block9Target2
Haworth1The Limited1
Hilton4The Room Place3
Holiday Inn2Toyota1
Home Depot4Toys"R"Us3
Hot Topic1Trader Joe's1
Houlihan's1True Value1
Howard Johnson1U-Haul14
Hyatt2UPS109
Hyundai1Verizon Wireless6
IHOP1Victoria's Secret3
J.Crew1Volkswagen2
JCPenney1Walgreens2
JoS. A. Bank2Walmart3
Jones New York5Wendy's7
Journeys1Westin1
Justice2Whole Foods Market1
KFC4YMCA5

Mercer County on our top lists:

  • #14 on the list of "Top 101 counties with the largest increase in the number of infant deaths per 1000 residents 2000-2006 to 2007-2013 (pop. 50,000+)"
  • #22 on the list of "Top 101 counties with the lowest percentage of residents that keep firearms around their homes"
  • #34 on the list of "Top 101 counties with the highest average weight of females"
  • #39 on the list of "Top 101 counties with the highest number of infant deaths per 1000 residents 2007-2013 (pop. 50,000+)"
  • #40 on the list of "Top 101 counties with the largest number of people moving out compared to moving in (pop. 50,000+)"
  • #61 on the list of "Top 101 counties with the lowest percentage of residents that drank alcohol in the past 30 days"
  • #64 on the list of "Top 101 counties with highest percentage of residents voting for Obama (Democrat) in the 2012 Presidential Election (pop. 50,000+)"
  • #90 on the list of "Top 101 counties with the highest percentage of residents that visited a dentist within the past year"
  • #101 on the list of "Top 101 counties with the lowest Ozone (1-hour) air pollution readings in 2012 (ppm)"
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