I know the show would be boring without walkers, but isn't the obvious solution just moving to Wyoming or something? They're willingly staying in the Atlanta Metro, which has a population of over 5 million people with 630 people per square mile.

Wyoming is the 10th largest state by area and has less than 600,000 people. Less than 6 people per square mile. Fewer people equals fewer walkers. Find a nice cozy cabin on top of a snowy mountain. Excellent defense against things that can barely walk. All the timber you could possibly want for fire. Kill large game like bear and moose that you can eat for weeks. Seems like the best plan.

I also don't think it would be hard at all to travel there. Sure, some spots in the highway are gonna look like the logjam in Season 2, but there's always a way around. The US is a pretty big country and I'm sure like 99% of the highways would be desolate. Hyundais are pretty fuel-efficient too.