According to Gallup's well-being research, 73.4% of LDS members are categorized as "very religious" — defined as those who say religion is an important part of daily life AND attend religious services at least weekly or almost weekly.
Mormons rank highest of any religious group on the index. Protestants follow at 50%, Muslims at 45%, Catholics at 40%, and Jews at 18%. The Mormon rate is roughly 1.5x the next highest group.
The high self-reported religiosity is consistent with behavioral measures including weekly church attendance and GPS-verified attendance data from the University of Chicago showing LDS attendance at 3x the national average.
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