For over a decade, the Church has published membership counts by country (and by US state, and Canadian province, and counts of units, and other various and sundry items) on its website. Over at the Mormon subreddit, a generous person who goes by the charming name latter_data_saint has scraped all the past data from the Internet Archive and made it available for perusal by any interested parties. And you can bet I’m an interested party, so I’ve taken a look.
In this post, I just wanted to look at US states, at which ones have membership growing more or less quickly, or even shrinking. From latter_data_saint’s data, I pulled out three data points for each state (and Washington, DC): the oldest value, the last value before the pandemic (which turned out to be late 2019), and the most recent value. Then I used these to calculate for each state the annual growth rate pre-pandemic (2012-2019) and post-pandemic (2019-2025). Of course you’ll want to keep in mind the usual caveats about how stated Church membership is going to be far higher than actual counts of posteriors in pews.
Warning: You might want to skip this paragraph if too much math makes your eyes glaze over. I got the annual growth rate from the total growth rate by just taking the yth root of one plus the total growth rate, where y is the number of years apart between first and last value, and subtracting one. For example, if the total growth rate were 10% for a particular state, and the values were seven years apart, then I would take the 7th root of 1+10% (or in other words, raise 1+10% to the power of 1/7), which works out to 1.014, so subtracting one gives a 1.4% annual growth rate. This means 1.4% annual growth over seven years gives 10% total growth: (1+1.4%)^7 = 1.10.
Here’s pre-pandemic growth.

California was alone in actually having a negative growth rate over the period. Texas and North Dakota had the fastest growth, and there was also some relatively strong growth in the old Confederacy, other than Mississippi. (Note that I excluded two states and DC for having a small number of members.)

im visiting church groups in different places. I especially liked this one where he’s shaking hands with a line of people, including a young man who not only isn’t wearing a white shirt, but is wearing a black shirt and a white tie! I appreciate the young man’s subversion of Mormon norms.









Best image: I like Robert Zund’s Road to Emmaus painting that 




