I've always gotten a kick out of Jeff Foxworthy's "You might be a redneck..." list, here's one of my favorites.
"If your front porch collapses and kills more than five dogs-you might be a redneck."
I seem to remember a term from the early 50’s -
Ditch diggers tan....guess that was the NY version of a redneck.....
LOL
Or....
If you have a set of salad bowls, and they all say “Cool Whip” on the side, you might be a redneck.