In real life, Brent Butt (Brent Leroy) and Nancy Robertson (Wanda Dollard) are married.
Corner Gas has the distinction of running for 107 episodes without a single major cast change, and all of the core cast members (i.e. those featured in the opening credits) appeared in every single episode.
All the main characters last names, (Brent)Leroy, (Hank)Yarbo, (Wanda)Dollard, (Lacey)Burrows, (Davis)Quinton and (Karen)Pelly are actually towns in Saskatchewan.
To promote the second season, cast members pumped gas in stations across Canada.
In the pilot episode there is a discussion between Officer Davis and Officer Pelly as to which one of them is Police car #1 and Police car #2. Police car #2 is never seen again throughout the series entirety.