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Religious Traditions, 2010

59,052 586 93,580 190,106 1,748 21,971 961,318
Evangelical Protestant Black Protestant Mainline Protestant Catholic Orthodox Other Unclaimed

Congregational adherents include all full members, their children, and others who regularly attend services. The 2010 reports contain incomplete counts of congregations and adherents belonging to the eight largest historically African-American denominations. These denominations are not included in the 2000 reports and are largely missing from the 1990 and 1980 reports.
[More information on the data sources]


Religious Bodies Tradition Family Congregations Adherents % Change
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints +5 +4728 +79.4%
Salvation Army Evangelical Protestant Holiness +1 +1442 +139.1%
Southern Baptist Convention Evangelical Protestant Baptist +11 +927 +52.9%
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 0 +593 +91.9%
Seventh-day Adventist Church Evangelical Protestant Adventist +4 +466 +14.8%
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist +1 +457 +225.1%
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal +6 +416 +24.2%
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed +16 +327 +10.8%
Christian and Missionary Alliance, The Evangelical Protestant Holiness -2 +168 +24.3%
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed +5 +164 +71.3%
International Pentecostal Holiness Church Evangelical Protestant Pentecostal +4 +162 +1350%
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal +2 +148 +34.7%
Wesleyan Church, The Evangelical Protestant Holiness 0 +135 +8.6%
Church of the Brethren Evangelical Protestant European Free-Church +2 +66 +77.6%
National Association of Free Will Baptists Evangelical Protestant Baptist +1 +51 +46.8%
Christian Church (Disciples of Christ) Mainline Protestant Baptist 0 +47 +40.9%
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist +1 +43 +16.9%
Allegheny Wesleyan Methodist Connection Evangelical Protestant Methodist/Pietist 0 +32 +100%
Churches of Christ Evangelical Protestant Baptist +1 +23 +2.3%
Church of God of Prophecy Evangelical Protestant Pentecostal -1 -5 -7.2%
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran +1 -14 -2.9%
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 0 -53 -63.1%
Free Methodist Church of North America Evangelical Protestant Holiness -1 -56 -60.9%
Christian Churches and Churches of Christ Evangelical Protestant Baptist -3 -119 -73.5%
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 0 -296 -36.1%
Evangelical Lutheran Church in America Mainline Protestant Lutheran +1 -358 -8.6%
Assemblies of God Evangelical Protestant Pentecostal -5 -706 -10.9%
Unitarian Universalist Association of Congregations Other Liberal -5 -969 -23.3%
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant Presbyterian-Reformed -14 -1448 -64.8%
Church of the Nazarene Evangelical Protestant Holiness -1 -2769 -38.4%
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism -3 -3833 -23.4%
United Methodist Church, The Mainline Protestant Methodist/Pietist -28 -7835 -21.7%
United Church of Christ Mainline Protestant Presbyterian-Reformed -30 -10518 -31.6%
American Baptist Churches in the USA Mainline Protestant Baptist -13 -12039 -37%
Catholic Church Catholic Catholicism -52 -74337 -28.1%
Christian Brethren Evangelical Protestant Ind. Fundamentalist -2 --- ---
Church of Christ, Scientist Other Christian Science -8 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist +5 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 0 --- ---
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed --- --- ---
Totals: -101 -104960 -24.4%

The population of Maine was 1,227,928 in 1990; in 1980 it was 1,124,660. The total population changed 9.2%. The adherent totals of the religious groups listed above (447,053) included 36.4% of the total population in 1990.

The population of Maine was 1,328,361 in 2010; in 2000 it was 1,274,923. The total population changed 4.2%. The adherent totals of the religious groups listed above (367,043) included 27.6% of the total population in 2010.

* In an effort to better match the ASARB standards for adherents, a few religious bodies changed the way their adherents were reported in 2010, including the Catholic Church, Amish groups, Friends groups, Jewish groups, the Church of Jesus Christ of Latter-day Saints, Non-denominational Christian Churches, and the United Methodist Church. This change does not affect any of the data in the newly released 2010 U.S. Religion Census: Religious Congregations & Membership Study. In fact, the data for these groups are now more comparable to that of other bodies than it was in previous decadal reports.

However, the change in methodology can distort assessments on growth or decline between 2000 and 2010 for each of these groups. County-level 2000 data using the new methodology are not readily available. ASARB staff has adjusted some 2000 county-level adherent statistics to allow for a more accurate picture on growth or decline. The revised maps and charts are now available on-line at for those who are interested in these trends.


2010 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 236 religious groups, providing information on the number of their congregations and adherents within each state and county in the United States. Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E. Jones, Alexei Krindatch, Richie Stanley and Richard H. Taylor supervised the collection. These data originally appeared in 2010 U.S. Religion Census: Religious Congregations & Membership Study, published by the Association of Statisticians of American Religious Bodies (ASARB). [More information on the data collection]

The adherence rate provides the number of adherents of a particular group per 1,000 population. For example, in 2010 the Episcopal Church had an adherence rate of 7.6 in Autauga County, Alabama. This means that about 8 out of every 1,000 people in Autauga County were Episcopalian.

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