U.S. Membership Report

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United States

Denominational Groups, 2000

39,994,852 26,091,321 989,106 62,035,042 12,254,099 140,057,419
Evangelical Protestant Mainline Protestant Orthodox Catholic Other Unclaimed

Congregational "adherents" include all full members, their children, and others who regularly attend services. The historically African American denominations are not included in the 2000 congregation and membership totals. Many are also missing in 1990 and most historically African American denominations are missing in the 1980 reports.
[More information on the data sources]

Reports


Religious Bodies Theology Congregations Adherents Adherence Rate
Catholic Church Catholic 21,791 62,035,042 220.4
Southern Baptist Convention Evangelical Protestant 41,514 19,881,467 70.7
United Methodist Church, The Mainline Protestant 35,721 10,350,629 36.8
Jewish Estimate Other Theology 3,727 6,141,325 21.8
Evangelical Lutheran Church in America Mainline Protestant 10,739 5,113,418 18.2
Church of Jesus Christ of Latter-day Saints, The Other Theology 11,515 4,224,026 15.0
Presbyterian Church (U.S.A.) Mainline Protestant 11,106 3,141,566 11.2
Assemblies of God Evangelical Protestant 11,880 2,561,998 9.1
Lutheran Church--Missouri Synod Evangelical Protestant 6,077 2,521,062 9.0
Episcopal Church Mainline Protestant 7,314 2,314,756 8.2
American Baptist Churches in the USA Mainline Protestant 5,555 1,767,462 6.3
United Church of Christ Mainline Protestant 5,863 1,698,918 6.0
Churches of Christ Evangelical Protestant 13,027 1,645,584 5.9
Muslim Estimate Other Theology 1,209 1,559,294 5.5
Christian Churches and Churches of Christ Evangelical Protestant 5,471 1,439,253 5.1
Independent, Non-Charismatic Churches Evangelical Protestant 1,084 1,116,769 4.0
Christian Church (Disciples of Christ) Mainline Protestant 3,339 1,017,784 3.6
Church of God (Cleveland, Tennessee) Evangelical Protestant 5,612 974,198 3.5
Independent, Charismatic Churches Evangelical Protestant 621 935,168 3.3
Seventh-day Adventist Church Evangelical Protestant 4,507 923,046 3.3
Church of the Nazarene Evangelical Protestant 5,209 907,331 3.2
Greek Orthodox Archdiocese of America Orthodox 518 427,659 1.5
Salvation Army, The Evangelical Protestant 1,332 415,060 1.5
Wisconsin Evangelical Lutheran Synod Evangelical Protestant 1,277 405,078 1.4
Wesleyan Church, The Evangelical Protestant 1,657 381,459 1.4
International Church of the Foursquare Gospel Evangelical Protestant 1,844 347,367 1.2
Reformed Church in America Mainline Protestant 896 335,677 1.2
Christian and Missionary Alliance, The Evangelical Protestant 1,878 331,106 1.2
Presbyterian Church in America Evangelical Protestant 1,441 315,293 1.1
Baptist Missionary Association of America Evangelical Protestant 1,322 295,239 1.1
Evangelical Free Church of America, The Evangelical Protestant 1,365 285,699 1.0
American Baptist Association, The Evangelical Protestant 1,867 280,973 1.0
National Association of Free Will Baptists Evangelical Protestant 2,466 254,170 0.9
Christian Reformed Church in North America Evangelical Protestant 740 248,938 0.9
General Association of Regular Baptist Churches Evangelical Protestant 1,422 245,636 0.9
International Pentecostal Holiness Church Evangelical Protestant 1,843 241,828 0.9
Church of God (Anderson, Indiana) Evangelical Protestant 2,286 238,609 0.9
Baptist General Conference Evangelical Protestant 866 238,920 0.9
Conservative Baptist Association of America Evangelical Protestant 1,191 224,306 0.8
Unitarian Universalist Association of Congregations Other Theology 999 182,698 0.7
Church of the Brethren Evangelical Protestant 1,074 171,281 0.6
Mennonite Church USA Evangelical Protestant 1,066 156,345 0.6
Vineyard USA Evangelical Protestant 529 155,170 0.6
Evangelical Covenant Church, The Evangelical Protestant 671 153,116 0.5
Bahá'í Other Theology 1,198 146,756 0.5
New Testament Association of Independent Baptist Churches and other Fundamental Baptist Associations/Fellowships Evangelical Protestant 649 132,684 0.5
Friends (Quakers) Mainline Protestant 1,302 113,086 0.4
Pentecostal Church of God Evangelical Protestant 1,173 101,921 0.4
Community of Christ Evangelical Protestant 892 98,874 0.4
Old Order Amish Church Evangelical Protestant 1,290 96,986 0.3
Free Methodist Church of North America Evangelical Protestant 950 96,237 0.3
Armenian Apostolic Church / Catholicossate of Etchmiadzin Orthodox 89 91,513 0.3
Church of God of Prophecy Evangelical Protestant 1,858 91,106 0.3
National Association of Congregational Christian Churches Mainline Protestant 426 84,380 0.3
Evangelical Presbyterian Church Evangelical Protestant 179 80,207 0.3
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox 210 82,374 0.3
Cumberland Presbyterian Church Evangelical Protestant 706 77,686 0.3
International Churches of Christ Evangelical Protestant 99 79,161 0.3
Orthodox Church in America: Territorial Dioceses Orthodox 370 77,110 0.3
National Primitive Baptist Convention, USA Evangelical Protestant 547 66,452 0.2
International Council of Community Churches Mainline Protestant 192 64,186 0.2
North American Baptist Conference Evangelical Protestant 290 59,545 0.2
Serbian Orthodox Church in the USA Orthodox 75 55,807 0.2
Conservative Congregational Christian Conference Evangelical Protestant 250 50,940 0.2
Missionary Church, The Evangelical Protestant 284 49,528 0.2
Old Missionary Baptists Associations Evangelical Protestant 302 49,870 0.2
Armenian Apostolic Church / Catholicossate of Cilicia Orthodox 38 46,354 0.2
Original Free Will Baptists Evangelical Protestant 237 46,211 0.2
Churches of God, General Conference Evangelical Protestant 336 42,204 0.2
Associate Reformed Presbyterian Church Evangelical Protestant 242 40,397 0.1
Ukrainian Orthodox Church of the USA Orthodox 104 35,586 0.1
Mennonite; Other Groups Evangelical Protestant 412 34,617 0.1
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox 18 35,118 0.1
Association of Free Lutheran Congregations, The Evangelical Protestant 234 32,098 0.1
Greek Orthodox Archdiocese of Vasiloupulis Orthodox 38 30,148 0.1
Mennonite Brethren Churches, U.S. Conference of Evangelical Protestant 171 28,142 0.1
Independent Free Will Baptists Associations Evangelical Protestant 264 24,107 0.1
Apostolic Christian Church of America, Inc. Evangelical Protestant 84 23,980 0.1
Brethren In Christ Church Evangelical Protestant 216 25,512 0.1
Orthodox Presbyterian Church, The Evangelical Protestant 278 26,346 0.1
Moravian Church in America--Northern Province Mainline Protestant 93 25,872 0.1
Universal Fellowship of Metropolitan Community Churches Mainline Protestant 206 23,440 0.1
Old Order Mennonite Evangelical Protestant 132 21,116 0.1
American Carpatho-Russian Orthodox Greek Catholic Church Orthodox 75 20,000 0.1
Moravian Church in America--Southern Province Mainline Protestant 59 19,764 0.1
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox 56 17,201 0.1
Macedonian Orthodox Church: American Diocese Orthodox 17 16,640 0.1
Interstate & Foreign Landmark Missionary Baptists Association Evangelical Protestant 121 16,127 0.1
Brethren Church, The (Ashland, Ohio) Evangelical Protestant 119 16,266 0.1
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant 104 17,821 0.1
Church of God in Christ, Mennonite Evangelical Protestant 100 15,337 0.1
Conservative Mennonite Conference Evangelical Protestant 104 14,865 0.1
Malankara Orthodox Syrian Church, American Diocese of the Orthodox 59 13,225 0.1
Syrian Orthodox Church of Antioch Orthodox 23 13,845 0.1
United Reformed Churches in North America Evangelical Protestant 49 11,449 0.0
Duck River and Kindred Baptists Associations Evangelical Protestant 99 12,542 0.0
Separate Baptists in Christ Evangelical Protestant 94 10,674 0.0
Hutterian Brethren Evangelical Protestant 123 12,300 0.0
Beachy Amish Mennonite Churches Evangelical Protestant 102 9,422 0.0
Jasper Baptist and Pleasant Valley Baptist Associations Evangelical Protestant 31 7,078 0.0
Progressive Primitive Baptists Evangelical Protestant 121 9,615 0.0
Christian Union Evangelical Protestant 114 7,319 0.0
Orthodox Church in America: Bulgarian Diocese Orthodox 18 8,791 0.0
Primitive Baptists, Eastern District Association of Evangelical Protestant 67 7,840 0.0
Apostolic Christian Churches (Nazarean) Evangelical Protestant 50 4,393 0.0
Church of God General Conference Evangelical Protestant 89 4,925 0.0
Reformed Church in the United States Evangelical Protestant 38 4,236 0.0
Enterprise Baptists Association Evangelical Protestant 65 5,289 0.0
Protestant Reformed Churches in America Evangelical Protestant 26 5,875 0.0
Primitive Methodist Church in the USA Evangelical Protestant 79 4,796 0.0
Bulgarian Orthodox Diocese of the USA Orthodox 9 5,340 0.0
Eastern Pennsylvania Mennonite Church Evangelical Protestant 49 4,384 0.0
International Pentecostal Church of Christ Evangelical Protestant 67 5,453 0.0
Landmark Missionary Baptists, Independent Associations and Unaffiliated Churches Evangelical Protestant 59 5,682 0.0
Evangelical Mennonite Church Evangelical Protestant 34 6,625 0.0
Amish; Other Groups Evangelical Protestant 90 6,671 0.0
Netherlands Reformed Congregations Evangelical Protestant 15 4,442 0.0
Malankara Archdiocese of the Syrian Orthodox Church in North America Orthodox 24 4,336 0.0
Orthodox Church in America: Albanian Orthodox Archdiocese Orthodox 12 5,775 0.0
New Hope Baptist Association Evangelical Protestant 20 2,772 0.0
Allegheny Wesleyan Methodist Connection Evangelical Protestant 115 1,864 0.0
Moravian Church in America--Alaska Province Mainline Protestant 24 2,562 0.0
Midwest Congregational Christian Fellowship Evangelical Protestant 29 1,705 0.0
Holy Orthodox Church in North America Orthodox 30 1,889 0.0
Wayne Trail Missionary Baptist Association Evangelical Protestant 13 2,756 0.0
Fellowship of Evangelical Bible Churches Evangelical Protestant 17 1,811 0.0
Albanian Orthodox Diocese of America Orthodox 2 395 0.0
Bruderhof Communities, Inc. Evangelical Protestant 7 924 0.0
Strict Baptists Evangelical Protestant 3 33 0.0
Reformed Mennonite Church Evangelical Protestant 9 347 0.0
Fundamental Methodist Conference, Inc. Evangelical Protestant 13 1,009 0.0
General Six Principle Baptists Evangelical Protestant 1 25 0.0
Old Order River Brethren Evangelical Protestant 5 540 0.0
Two-Seed-in-the-Spirit Predestinarian Baptists Evangelical Protestant 4 65 0.0
Buddhism Other Theology 1,656 n.a. n.a.
Southwide Baptist Fellowship Evangelical Protestant 501 n.a. n.a.
Sikh Other Theology 211 n.a. n.a.
Tao Other Theology 38 n.a. n.a.
Reformed Baptist Churches Evangelical Protestant 197 n.a. n.a.
Coptic Orthodox Church Orthodox 55 n.a. n.a.
Patriarchal Parishes of the Russian Orthodox Church in the USA Orthodox 32 n.a. n.a.
Hindu Other Theology 629 n.a. n.a.
Zoroastrian Other Theology 35 n.a. n.a.
Jain Other Theology 92 n.a. n.a.
Serbian Orthodox Church in the USA (New Gracanica Metropolitanate) Orthodox 38 n.a. n.a.
Russian Orthodox Church Outside of Russia Orthodox 129 n.a. n.a.
Primitive Baptist Churches--Old Line Evangelical Protestant 1,381 n.a. n.a.
Calvary Chapel Fellowship Churches Evangelical Protestant 728 n.a. n.a.
Totals (Unadjusted)*: 268,240 141,364,420  
Total (Adjusted)**:   176,477,348  

The population of the United States in 1990 was 248,709,766; in 2000 it was 281,421,839. The total population changed 13.2%. The unadjusted adherent totals of the religious groups listed above (141,364,420) include 50.2% of the total population in 2000. The adjusted total adherents (176,477,348) include 62.7% of the population.

Source

*The “Unadjusted Totals” come from the 1990 and 2000 data collected by representatives of the Association of Statisticians of American Religious Bodies (ASARB). While quite comprehensive, this data excludes most of the historically African-American denominations and some other major groups. As a result, these numbers will be an underestimate of the total adherence rate, particularly in areas with a large African-American population. The 2000 data included 149 religious groups and the final results are published in Religious Congregations and Membership in the United States 2000. Copyright © 2002, All rights reserved. The 1990 data included 132 groups and the final results are published in Churches and Church Membership in the United States 1990 Copyright © 1990, All rights reserved. Published by Glenmary Research Center, 1312 Fifth Ave., North, Nashville, TN 37208. www.glenmary.org [More information on the data collection]

**The “Adjusted Totals” include all adherents in the denominations counted by the Association of Statisticians of American Religious Bodies (ASARB) and estimates adherent totals for the historically African-American denominations and other religious groups not listed in the ASARB totals. An article by Roger Finke and Christopher P. Scheitle (2005) reviews how these estimates were computed.

The adherence rate provides the number of adherents of a particular group per 1,000 population. For example, in 2000 the Episcopal Church had an adherence rate of approximately 8 (8.1) in Autauga County, Alabama. This means that 8 out of every 1,000 people in Autauga County are Episcopalian.

[More information on the data source]