I also grew up in rural ID and moved to SLC area a few years ago to live in base. I’m over in Syracuse on the North side of SLC and we have really enjoyed it. It’s very quiet and out of the way and pretty affordable. The LDS thing is very much present down here, however there are plenty of people that don’t belong to that church as well. The state has changed quite a bit even in the last ten years or so. It seems like it’s about 50/50 around me. Unfortunately, I can’t speak to the kids/school aspect. Cheers and good luck.