Apparently, the Utah-based faith showed "a net increase [in the U.S.] of only 69 congregations during the year — a 0.49 percent annual increase and a significantly smaller increase than most recent years," Martinich explained in his post. "Typically the church has reported an annual net increase of 100 to 150 wards and branches and an annual congregational growth rate of 0.8 [percent] to 1.2 percent."
The researcher partly attributes the declining congregational growth, especially in California, to a drop in the membership growth rate in the U.S., where the LDS Church claims more than 6.5 million Mormons.
In 2015, the church had its slowest U.S. membership growth rate since 1989 — "a mere 1 percent" — compared with the typical 1.5 percent to 2 percent in place since 1999.
"Fewer convert baptisms, a reduced birthrate and inactivity problems among young single adults," Martinich wrote, "appear primarily responsible for slowing membership growth."
Like so many other Christian faiths, Mormonism, with 15.6 million members globally, seems to be slipping — or at least not growing as fast — in the developed world, but is looking to Africa and parts of Latin America for its growth.
Still, Martinich cautioned, full statistical analysis won't be possible until the LDS Church releases official data in April.
Peggy Fletcher Stack