Some of the older glasses used Uranium (up to 25%) so check any old glassware! But it sounds like you would have to be just about over a mineable deposit of Uranium Ore to be too concerned.
Funny thing was I was just only just recently watching Cody's lab over on youtube where he refined Uranium metal (at home) from ore he found fossicking in Colorado. That guy is crazy!
You'd be surprised. We did our study in the suburbs of Canberra and found elevated levels in lots of the homes we tested. Not enough to be a health risk in the places we looked, but more than youd expect all the same. Its mainly geology though. You don't have to be quite a uranium deposit, but if the geology in your area is the right (wrong?) type then you'll find it.
Ahh the days of being a graduate uni student door knocking in the suburbs asking people if you could put a radiation testing device in their kitchen :) I don't miss those at all !