It depends greatly on where you are.
The first 18 years of my life I'd never seen a venomous snake in the wild. Moved to deep East Texas and within a week I'd been bitten by a copperhead. Seeing them and cottonmouths became very commonplace on our farm not to mention a litany of non-venomous ones. Over the next 20 or so years back in North Texas, again, no venomous snakes. Then I bought some land and built a house in a rural area and WOW...rattlesnakes everywhere, but it's very rare to see a non-venomous model.
