Cheap, undeveloped land. Try Maine. It is quite easy to find land for $1,000. - $2,000./acre. The property tax rate is good so, cheap land x moderate property tax rate = low property tax bill. Also, you can put some of your land into a discounted property tax program for timber growth if you choose.
I recently saw a property in Maine for sale. Almost 700 acres with interior gravel roads to get around, 360 degree views, 300 acres of blueberries with last years' reported yield of 800,000lbs, old post and beam barn looked to be in good shape. Asking $500,000. and the property taxes were about $1,800./year if I remember correctly.
The downside... winter snow/cold, mud-season, bugs, distance to civilization and in some places wind.
Re: Maine. Agree - Fantastic place to live. Amazing place to live and great suggestion,
@green mountain boys. Happiest I've ever been since we moved here a few years back. And people here have welcomed us as if we'd been born here, contrary to what some would caution.
That said, please only move here if you intend on being, well, a decent human being. Have radical political views in either direction and want to impose those on others? Please stay where you're at. Don't want to help your neighbors by volunteering in the community? Not the place for you. Think you can move here and change things to the way they were back wherever you're moving from? Not gonna go well.
On the other hand, you can believe just about anything you want, and even discuss those views down at the local watering hole, as long as you treat others respectfully and listen more than you talk. Amazing how people that take that approach can all get along here (I see it almost every week, with a very wide range of people, all at the same table). If you have decent health, we sure could use more volunteer firefighters. I joined for the first time in my mid-fifties, with at least 25 extra pounds on me. They found ways to make me useful (and I made some new friends). Local libraries and other community organizations need help, too. Figure out how to "give back" a little bit, even if you're no longer as young as you once were (we're the oldest state in the nation, so we can't depend on just the young folks to get stuff done).
Anyway... I absolutely love our adopted home, here in Maine. We have friends all over the world, but these folks have treated us like family (the kind you want!). But they expect you to do more than just sit on your rear and "take". They'll give you all the space you need, but they have a sense of community, and if you're gonna live here, they expect you to do your part. Freeloaders, blowhards, and jerks not welcome. Decent folks, willing to pitch in a little, and treat others with respect even when they disagree with you, come on up.