The 80's and nuclear war drills and such in schools

I grew up in the 80s, and when I was in Utah, we would have drills in case of a nuclear war. Of course, we did the usual duck and cover under our desk drills, which were the same for nuclear wars and earthquakes. Once in fourth grade, I had an assignment to find and write down the addresses of all the fallout shelters between the school and my house. My question is, in Mississippi, most buildings being sans basements, were fallout shelters a thing here? I don't remember anything like that in Wyoming or New Mexico, which are the other two states I spent the most time in growing up. Random fun fact I would spend most summers in the Uranium Capitol of the world, or at least that is what the sign said as you drove into town.