Last year NPR did a report on people moving to places that align with their politics, like conservative people moving from California to Texas. Or liberals moving from Wyoming to Oregon. Since most Mormons lean conservatives, this could help explain the shrinkage of the church in liberal states, and the growth in the jello belt (Idaho/Utah/Arizona).

Anecdotal information from my own stake in southern California: When I moved here in 1982, my town had 4 wards, and the stake had 8 including a nearby town. It grew to 6 wards in my town, four english, two Spanish, and a Samoan branch in the early 2000s. Today we are down to 2 wards in my town, and 7 total for the stake, which includes a Spanish ward that covers the whole stake, and a YSA ward that is shared with a neighboring stake. So less members today than in 1982 live in my stake.

For the moving part, two of the last three Stake Presedents moved to Utah when they were relased.

From the LDS Growth Blog, the states having the most increase in members in the last 3 years was Utah, Idaho, Texas, Florida and Arizona, all red (republican leaning) states. Those states that lost the most members are California, Washington and Oregon (all blue states). This tracks exactly with the NPR article about the movement of people for political reason. Add politics and religion for a reason to move, and you have a recipe for Utah membership growth, and California shrinkage (Maybe the pool was cold???). When confronted with the slow growth in the US, Elder Bednar admitted some movement of members, but “didn’t have the numbers”.

What is your experience with members moving? Are they coming or going from your ward? Where are they coming from/moving to?