Diversity rising: Census shows Mormons, nondenominational churches, Muslims spreading out across U.S.

The U.S. religious landscape is shifting, and no one may be more thankful than GOP presidential contender Mitt Romney.

The 2010 U.S. Religion Census, released today on the Association of Religion Data Archives, found that The Church of Jesus Christ of Latter-day Saints gained the most regular members in the last 10 years, growing by nearly 2 million to a total of 6.14 million adherents in 13,600 congregations.

Some of the church’s largest percentage gains were in places such as Tazewell County, Virginia; Bath County, Kentucky, and Big Horn County, Montana. As Romney makes his historic run to be the first Mormon president, there are few places on the 2012 campaign trail he will go where people are not close to a Latter-day Saint congregation or neighbors who share his faith.

But the denomination is not the only one spreading its wings nationally in a time of increasing religious diversity, the census shows.

Consider these findings:

Still, not everyone was a winner in the religious marketplace.

Mainline Protestant churches lost an average of 12.8 percent of adherents in the first decade of the 21st century; 5 percent fewer active members were found in Catholic churches.

A vital marketplace

The U.S. Religion Census, also known as the Religious Congregations & Membership Study 2010, is a once-in-a-decade project to collect county-by-county data from hundreds of religious groups. It is considered the most complete census data for local, state and national information on congregations and their members.

The 2010 study, sponsored by The Association of Statisticians of American Religious Bodies, obtained reports from 236 religious bodies. The 236 groups reported 344,894 congregations with 150,686,156 adherents, comprising 48.8 percent of the total U.S. population of 308,745,538 in 2010.

The study data and the accompanying maps, which provide easy visual analysis of religion demographics, are widely used by scholars, researchers, teachers, the media and the general public.

“Each year the ARDA disseminates thousands of copies of the data files and each week thousands of visitors use ARDA’s online maps and reports to explore America’s religious landscape,” said sociologist Roger Finke of Pennsylvania State University, ARDA director. “Whether it is county profiles conducted by local churches or national research conducted by religion scholars, the data offer a trove of new information on American religion.”

One limitation of the study is that information on attendance and membership is self-reported by the religious bodies. Some figures are estimates, such as the 2.6 million Muslims in the U.S.  Further information on study sources is available on ARDA.

Still, Clifford Grammich, a study leader, said the 2010 study “is the most comprehensive local-level analysis of U.S. religious adherents and attendance in more than 60 years.”

What emerges from the new census is a portrait of an increasingly diverse, vital religious marketplace.

It is difficult today for any one group to claim a monopoly on a particular state or region of the country.

For example, if you consider, as the group itself does, that the Mormon Church is a Christian body, The Church of Jesus Christ of Latter-day Saints reported the largest increase among Christian groups from 2000 to 2010 in 30 states, including places like North Dakota, New Mexico and West Virginia.

Meanwhile, the census found nondenominational and independent churches in 2,663 counties, or 88 percent of U.S. counties. Added together, they would be among the top five religious groups in 48 states.

In secular terms, Hartford Seminary sociologist Scott Thumma compares the nationwide growth of groups such as the Mormon Church and nondenominational congregations to successful fast-food franchises starting out locally, finding they meet a need and then expanding regionally and nationally until you can find one at almost every rest stop.

Nondenominational churches, in particular, have become “an alternative to denominational religiosity in every market,” Thumma said.

Increasing competition

The diversity extends beyond Christianity.

The number of non-Christian congregations – synagogues, mosques, temples and other religious centers – increased by nearly a third, from 8,795 in the 2000 study to 11,572 in the 2010 census. Houses of worship of other faiths were found in 985 counties in 2010, almost a third of the total.

Even some groups that had a drop in adherents found themselves expanding in newer markets.

For example, the Catholic Church, which had 62 million adherents in 2000 and 59 million in 2010 according to the census, reported the largest gains among Christian groups in 11 states, including Georgia, Nevada and Oregon.

Even places such as Salt Lake County in Utah, the home of the Latter-day Saints, have become more diverse, cosmopolitan communities, census researchers noted.   The number of Catholic adherents there jumped from 53,500 to 84,000 from 2000 to 2010.

There has been a shift to “a true marketplace,” Thumma said. When new players “in the religious marketplace come along, it’s harder to maintain this is our market, you can’t come in here.”

So, too, is it possible for a Mormon to run for president.

It is “absolutely the case,” Thumma said, that the spread of Latter-day Saints across the nation, and the degree of familiarity that provided many Americans with their faith, paved the way for a Romney run.

Explore congregational membership in every county, state and urban area in the United States.

One Response to “Diversity rising: Census shows Mormons, nondenominational churches, Muslims spreading out across U.S.”

  1. mhweiss says:

    There is potential for significant error because of the reliance on religious institutions to self report. Suppose a given institution considered members in 2000 by counting dues payers. Then in the latest report they count people on their list serve.

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