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Illinois, Indiana, Michigan, Ohio, Wisconsin

Denominational Groups, 2000

5,146,182 4,928,045 219,767 10,658,360 1,023,677 23,179,006
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]


Religious Bodies Theology Congregations Adherents Adherence Rate
Advent Christian ChurchEvangelical Protestant------
African Methodist Episcopal Zion ChurchEvangelical Protestant------
Albanian Orthodox Diocese of AmericaOrthodox12700.0
Allegheny Wesleyan Methodist ConnectionEvangelical Protestant284820.0
American Association of Lutheran ChurchesEvangelical Protestant------
American Baptist Association, TheEvangelical Protestant755,1350.1
American Baptist Churches in the USAMainline Protestant1,211397,0058.8
American Carpatho-Russian Orthodox Greek Catholic ChurchOrthodox112,2790.1
Amish; Other GroupsEvangelical Protestant473,5090.1
Antiochian Orthodox Christian Archdiocese of North America, TheOrthodox3314,7260.3
Apostolic Catholic Assyrian Church of the East, North American DiocesesOrthodox624,1100.5
Apostolic Christian Church of America, Inc.Evangelical Protestant4217,4980.4
Apostolic Christian Churches (Nazarene)Evangelical Protestant192,4030.1
Apostolic Lutheran Church of AmericaEvangelical Protestant------
Armenian Apostolic Church / Catholicossate of CiliciaOrthodox63,4860.1
Armenian Apostolic Church / Catholicossate of EtchmiadzinOrthodox1310,1230.2
Assemblies of GodEvangelical Protestant1,334346,1947.7
Associate Reformed Presbyterian ChurchEvangelical Protestant2170.0
Association of Free Lutheran Congregations, TheEvangelical Protestant416,0150.1
Bahá'íOther Theology12713,4840.3
Baptist General ConferenceEvangelical Protestant22446,1241.0
Baptist Missionary Association of AmericaEvangelical Protestant354,8460.1
Beachy Amish Mennonite ChurchesEvangelical Protestant393,5620.1
Black Baptists EstimateEvangelical Protestant------
Brethren Church, The (Ashland, Ohio)Evangelical Protestant6111,6190.3
Brethren In Christ ChurchEvangelical Protestant291,7610.0
BuddhismOther Theology152----
Bulgarian Orthodox Diocese of the USAOrthodox53,9200.1
Byelorussion Council Of Orthodox Churches In North AmericaOrthodox------
Calvary Chapel Fellowship ChurchesEvangelical Protestant58----
Catholic ChurchCatholic4,35410,658,360236.0
Central Baptist Association MinistriesEvangelical Protestant------
Christ Catholic ChurchEvangelical Protestant------
Christian and Missionary Alliance, TheEvangelical Protestant27656,6771.3
Christian BrethrenEvangelical Protestant------
Christian Church (Disciples of Christ)Mainline Protestant582220,9454.9
Christian Churches and Churches of ChristEvangelical Protestant1,726512,63611.4
Christian Reformed Church in North AmericaEvangelical Protestant324145,4373.2
Christian UnionEvangelical Protestant704,2530.1
Church of Christ, ScientistOther Theology------
Church of God (Anderson, Indiana)Evangelical Protestant61777,6291.7
Church of God (Cleveland, Tennessee)Evangelical Protestant574113,3602.5
Church of God (Seventh Day)Evangelical Protestant------
Church of God General ConferenceEvangelical Protestant372,1490.0
Church of God in Christ, MennoniteEvangelical Protestant91,3350.0
Church of God of ProphecyEvangelical Protestant1335,7160.1
Church of God, Mountain Assembly, Inc.Evangelical Protestant------
Church of Jesus Christ of Latter-day Saints, TheOther Theology482149,8553.3
Church of the BrethrenEvangelical Protestant27442,1550.9
Church of the Lutheran Brethren of AmericaEvangelical Protestant------
Church of the Lutheran ConfessionEvangelical Protestant------
Church of the NazareneEvangelical Protestant1,194225,8215.0
Church of the United Brethren in ChristEvangelical Protestant------
Churches of ChristEvangelical Protestant1,329146,1613.2
Churches of God, General ConferenceEvangelical Protestant9113,4530.3
Community of ChristEvangelical Protestant21224,1200.5
Congregational Christian Churches, Additional (not part of any national CCC body)Mainline Protestant173,7830.1
Conservative Baptist Association of AmericaEvangelical Protestant8218,2090.4
Conservative Congregational Christian ConferenceEvangelical Protestant6511,9470.3
Conservative Mennonite ConferenceEvangelical Protestant487,6050.2
Cumberland Presbyterian ChurchEvangelical Protestant504,1420.1
Eastern Pennsylvania Mennonite ChurchEvangelical Protestant43550.0
Enterprise Baptists AssociationEvangelical Protestant292,0480.0
Episcopal ChurchMainline Protestant851212,0824.7
Estonian Evangelical Lutheran ChurchMainline Protestant------
Evangelical Congregational Church, TheEvangelical Protestant------
Evangelical Covenant Church, TheEvangelical Protestant14932,4280.7
Evangelical Free Church of America, TheEvangelical Protestant30165,1181.4
Evangelical Lutheran Church in AmericaMainline Protestant2,4911,278,51328.3
Evangelical Lutheran SynodEvangelical Protestant------
Evangelical Mennonite ChurchEvangelical Protestant306,1560.1
Evangelical Methodist ChurchEvangelical Protestant------
Evangelical Presbyterian ChurchEvangelical Protestant3417,3750.4
Fellowship of Evangelical Bible ChurchesEvangelical Protestant1250.0
Fire Baptized Holiness Church, (Wesleyan), TheEvangelical Protestant------
Free Methodist Church of North AmericaEvangelical Protestant29533,3380.7
Friends (Quakers)Mainline Protestant31526,2610.6
General Association of Regular Baptist ChurchesEvangelical Protestant607135,7953.0
Greek Orthodox Archdiocese of AmericaOrthodox9190,7682.0
Greek Orthodox Archdiocese of VasiloupulisOrthodox32,6800.1
HinduOther Theology70----
Holy Orthodox Church in North AmericaOrthodox1180.0
Hutterian BrethrenEvangelical Protestant------
Independent Free Will Baptists AssociationsEvangelical Protestant121,1490.0
Independent Fundamental Churches of AmericaEvangelical Protestant------
Independent, Charismatic ChurchesEvangelical Protestant7685,3451.9
Independent, Non-Charismatic ChurchesEvangelical Protestant232244,6385.4
International Church of the Foursquare GospelEvangelical Protestant18428,1340.6
International Churches of ChristEvangelical Protestant138,7790.2
International Council of Community ChurchesMainline Protestant6023,6310.5
International Pentecostal Church of ChristEvangelical Protestant272,4820.1
International Pentecostal Holiness ChurchEvangelical Protestant402,9750.1
JainOther Theology15----
Jewish EstimateOther Theology409568,48512.6
Latvian Evangelical Lutheran Church in AmericaMainline Protestant------
Lutheran Church--Missouri SynodEvangelical Protestant1,781955,04321.2
Macedonian Orthodox Church: American DioceseOrthodox99,4400.2
Malankara Archdiocese of the Syrian Orthodox Church in North AmericaOrthodox34500.0
Malankara Orthodox Syrian Church, American Diocese of theOrthodox51,3750.0
Mennonite Brethren Churches, U.S. Conference ofEvangelical Protestant1140.0
Mennonite Church USAEvangelical Protestant24243,8331.0
Mennonite; Other GroupsEvangelical Protestant977,9610.2
Midwest Congregational Christian FellowshipEvangelical Protestant291,7050.0
Missionary Church, TheEvangelical Protestant18231,3660.7
Moravian Church in America--Northern ProvinceMainline Protestant348,1280.2
Muslim EstimateOther Theology205265,7975.9
National Association of Congregational Christian ChurchesMainline Protestant15636,3590.8
National Association of Free Will BaptistsEvangelical Protestant27921,1110.5
National Primitive Baptist Convention, USAEvangelical Protestant182,0270.0
Netherlands Reformed CongregationsEvangelical Protestant61,4400.0
New Testament Association of Independent Baptist Churches and other Fundamental Baptist Associations/FellowshipsEvangelical Protestant38692,3992.0
North American Baptist ConferenceEvangelical Protestant5514,1230.3
Old Missionary Baptists AssociationsEvangelical Protestant172,2190.0
Old Order Amish ChurchEvangelical Protestant75856,7391.3
Old Order MennoniteEvangelical Protestant273,3110.1
Old Order River BrethrenEvangelical Protestant------
Old Regular BaptistsEvangelical Protestant------
Open Bible Standard Churches, Inc.Evangelical Protestant------
Orthodox Church in America: Albanian Orthodox ArchdioceseOrthodox26500.0
Orthodox Church in America: Bulgarian DioceseOrthodox94,0620.1
Orthodox Church in America: Romanian Orthodox Episcopate of AmericaOrthodox186,7440.1
Orthodox Church in America: Territorial DiocesesOrthodox5111,5530.3
Orthodox Presbyterian Church, TheEvangelical Protestant425,1010.1
Patriarchal Parishes of the Russian Orthodox Church in the USAOrthodox7----
Pentecostal Church of GodEvangelical Protestant16116,6570.4
Presbyterian Church (U.S.A.)Mainline Protestant1,739511,56211.3
Presbyterian Church in AmericaEvangelical Protestant9315,9850.4
Primitive Baptist Churches--Old LineEvangelical Protestant113----
Primitive Baptists AssociationsEvangelical Protestant------
Primitive Baptists, Eastern District Association ofEvangelical Protestant44830.0
Primitive Methodist Church in the USAEvangelical Protestant159120.0
Progressive Primitive BaptistsEvangelical Protestant62340.0
Protestant Reformed Churches in AmericaEvangelical Protestant184,5920.1
Reformed Baptist ChurchesEvangelical Protestant22----
Reformed Church in AmericaMainline Protestant249120,5122.7
Reformed Church in the United StatesEvangelical Protestant24140.0
Reformed Episcopal ChurchEvangelical Protestant------
Reformed Mennonite ChurchEvangelical Protestant51790.0
Russian Orthodox Church Outside of RussiaOrthodox17----
Salvation Army, TheEvangelical Protestant24794,0412.1
Separate Baptists in ChristEvangelical Protestant293,4330.1
Serbian Orthodox Church in the USAOrthodox2025,4660.6
Serbian Orthodox Church in the USA (New Gracanica Metropolitanate)Orthodox17----
Seventh Day Baptist General Conference, USA and CanadaEvangelical Protestant------
Seventh-day Adventist ChurchEvangelical Protestant589105,3722.3
SikhOther Theology22----
Southern Baptist ConventionEvangelical Protestant2,168687,85015.2
Southwide Baptist FellowshipEvangelical Protestant55----
Strict BaptistsEvangelical Protestant2250.0
Syrian Orthodox Church of AntiochOrthodox28700.0
TaoOther Theology1----
The Protestant Conference (Lutheran)Evangelical Protestant------
Two-Seed-in-the-Spirit Predestinarian BaptistsEvangelical Protestant1200.0
Ukrainian Orthodox Church of the USAOrthodox216,7770.2
Unitarian Universalist Association of CongregationsOther Theology13726,0560.6
United BaptistsEvangelical Protestant------
United Church of ChristMainline Protestant1,393516,94011.4
United Methodist Church, TheMainline Protestant6,1651,571,05934.8
United Reformed Churches in North AmericaEvangelical Protestant195,1030.1
Universal Fellowship of Metropolitan Community ChurchesMainline Protestant201,2650.0
Vineyard USAEvangelical Protestant8640,9140.9
Wayne Trail Missionary Baptist AssociationEvangelical Protestant132,7560.1
Wesleyan Church, TheEvangelical Protestant519128,8712.9
Wisconsin Evangelical Lutheran SynodEvangelical Protestant623271,8396.0
ZoroastrianOther Theology5----
Totals (Unadjusted)*:   41,502 21,976,031  
Total (Adjusted)**:     26,547,381  

The population of these counties (or equivalents) in 1990 was 42,008,942; in 2000 it was 45,155,037. The total population changed 7.5%. The unadjusted adherent totals of the religious groups listed above (21,976,031) include 48.7% of the total population in 2000. The adjusted total adherents (26,547,381) include 58.8% of the population.


*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. [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]

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