Mormons also lead in households with three children — 12 percent — compared with a national average of 6 percent. Concerning homes with two children, the LDS figure is a little above average, at 14 percent, compared with 13 percent nationally; the survey shows that LDS families with one child are 14 percent, while nationally the average is 13 percent.

Another indication of family size is the percentage of those surveyed who have no children. The national average is 68 percent, according to Pew. But among the LDS members surveyed, it's only 51 percent, the smallest proportion of any group surveyed.

• More LDS members live in the West than in the rest of the country combined, with 76 percent of the 581 members of the church surveyed calling this region home. Not surprisingly, Utah has the highest proportion of what the survey calls "Mormon tradition," at 58 percent of the state's population. In Idaho, 23 percent are "Mormon tradition"; in Nevada it's 11 percent; Oregon, 5 percent; Montana-Wyoming (the states are combined), 5 percent; Arizona, 4 percent.

Utah's non-LDS population includes evangelical Protestants, 7 percent (compared with 26 percent of the national population); mainline Protestant, 6 percent (18 percent nationwide); members of historically black Protestant churches, 1 percent (7 percent nationally); Catholics, 10 percent (24 percent nationally); Orthodox Christians, less than 0.5 percent (1 percent nationally); Jehovah's Witness tradition, less than 0.5 percent (1 percent nationally); other Christians, less than 0.5 percent (same as national figures); Jewish tradition, less than 0.5 percent (2 percent nationally); Muslim tradition, less than 0.5 percent (1 percent of the American population); Buddhist tradition, less than 0.5 percent (1 percent across the country), Hindus, less than 0.5 percent (same as national figures); other world religions, less than 0.5 percent (same as national figures); other faiths, 1 percent (same as national), unaffiliated, 16 percent (same proportion as national figures), and don't know or refused, 1 percent (less than 0.5 percent nationally).

• Hindus are the most likely to be married, at 78 percent; LDS Church members are second, with 71 percent. The national average is 54 percent.

• The LDS Church membership is younger than most. The national average for members 18 to 29 is 20 percent, while among Mormons it's 24 percent. For members 30 to 49, the national figures are 39 percent, but Mormons have 42 percent; for 50 to 64 years old, the national total is 25 percent, but for LDS members, it's 19 percent; throughout America, 16 percent of those surveyed are 65 and over, while Mormons have 15 percent in that age range. For this survey, 555 Mormons responded.

The totals for this section include other faiths and unaffiliated.