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Religion in the U.S. by the numbers

Total number of religious adherents nationwide • 150,686,156

Percentage of total U.S. population •48.8

Religions by percent of U.S. population, 2010:

Catholic • 19.1 percent

Evangelical and Conservative Protestant • 14.3 percent

Mainline Protestant • 7.3 percent

Other faiths • 2.2 percent

LDS • 2 percent

Black Protestant • 1.6 percent

Orthodox Christian • 0.3 percent

U.S. national growth in the number of adherents, selected faiths, 2000 to 2010:

Muslim • 66.7 percent

Mormon • 45.5 percent

Protestant, Evangelical • 1.7 percent

Protestant, Mainline • (-12.8) percent

Catholic • (-5) percent

Comparable growth rates, 2000 to 2010, in metropolitan areas of at least 1 million population

Muslim • 56.9 percent

Mormon • 48.6 percent

Protestant, evangelical • 7.2 percent

Protestant, mainline • (-10.6) percent

Catholic • (-5.5) percent

Single largest religion in every U.S. state • Christianity

20 • Number of states in which Islam is the largest non-Christian group

Arkansas, Alabama, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Michigan, Mississippi, Nebraska, North Carolina, North Dakota, South Dakota, Texas, Virginia, West Virginia, Wisconsin and Wyoming

15 • Number of states, including D.C., in which Judaism is the largest non-Christian group

Connecticut, District of Columbia, Maine, Maryland, Massachusetts, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Tennessee and Vermont

13 • Number of states in which Buddhism is the largest non-Christian group

Alaska, California, Colorado, Hawaii, Idaho, Kansas, Montana, New Mexico, Nevada, Oklahoma, Oregon, Utah and Washington

2 • Number of states in which Hinduism is the largest non-Christian group

Arizona and Delaware

1 • Number of states in which Baha'i is the largest non-Christian group

South Carolina

30 • Number of states in which The Church of Jesus Christ of Latter-day Saints showed the largest gains of any Christian group:

(Alaska, Arizona, Arkansas, California, Connecticut, Florida, Hawaii, Idaho, Iowa, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Dakota, Ohio, Rhode Island, Utah, Vermont, Washington, West Virginia and Wyoming)

115 • Number of U.S. counties where LDS is the largest religious body

Counties in Utah with largest 2000-2010 Mormon population growth:

Tooele • 50.5 percent

Washington • 50 percent

Daggett • 42.1 percent

Utah • 41 percent

Wasatch • 37.1 percent

Morgan • 35 percent

*Millard • Only county in Utah where LDS population declined, 2000-2010, (-0.2) percent

Counties in Utah with highest Mormon percentage of total population, 2010:

Morgan • 88.9 percent

Utah • 88.7 percent

Rich • 88 percent

Sevier • 83.6 percent

Cache • 82.3 percent

Juab • 81.7 percent

Counties in Utah with lowest Mormon percentage of total population, 2010:

Grand • 31.1 percent

Summit • 35 percent

San Juan • 44 percent

Carbon • 53.1 percent

Kane • 57.8 percent

Salt Lake • 59.3 percent

Compiled by Tony Semerad

Source: U.S. Religion Census 2010 , compiled by the Association of Statisticians of American Religious Bodies