I live in eastern Idaho near the Tetons. Great country, so if into outdoors, you'll love it. Economy is not great, but better than some places. If you are not Mormon, as I am not, you may be looked down upon and judged frequently. Also be careful with doing business with a Mormon, they are not honest and will screw you over for money, especially if you aren't Mormon.
Although I love the area and was raised in the western portion of Idaho, and living the last decade out in the Ohio valley, I definaly feel out of place. This area has a huge cult type atmosphere about it.
But overall, I would recommend it, it is much safer for a family to live here than most areas.