County Membership Report
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Cook County, Illinois

Denominational Groups, 2000

270,818 261,906 74,202 2,146,961 344,061 2,278,793
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
Albanian Orthodox Diocese of America Orthodox 1 270 0.1
American Baptist Association, The Evangelical Protestant 1 63 0.0
American Baptist Churches in the USA Mainline Protestant 57 21,825 4.1
American Carpatho-Russian Orthodox Greek Catholic Church Orthodox 1 207 0.0
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox 2 1,428 0.3
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox 3 19,650 3.7
Apostolic Christian Church of America, Inc. Evangelical Protestant 1 175 0.0
Armenian Apostolic Church / Catholicossate of Cilicia Orthodox 1 980 0.2
Armenian Apostolic Church / Catholicossate of Etchmiadzin Orthodox 3 3,688 0.7
Assemblies of God Evangelical Protestant 66 14,013 2.6
Association of Free Lutheran Congregations, The Evangelical Protestant 1 55 0.0
Bahá'í Other Theology 20 2,505 0.5
Baptist General Conference Evangelical Protestant 43 9,353 1.7
Baptist Missionary Association of America Evangelical Protestant 2 84 0.0
Buddhism Other Theology 47 n.a. n.a.
Bulgarian Orthodox Diocese of the USA Orthodox 1 900 0.2
Calvary Chapel Fellowship Churches Evangelical Protestant 3 n.a. n.a.
Catholic Church Catholic 370 2,146,961 399.3
Christian and Missionary Alliance, The Evangelical Protestant 22 2,884 0.5
Christian Church (Disciples of Christ) Mainline Protestant 15 3,146 0.6
Christian Churches and Churches of Christ Evangelical Protestant 21 5,272 1.0
Christian Reformed Church in North America Evangelical Protestant 28 12,251 2.3
Church of God (Anderson, Indiana) Evangelical Protestant 19 3,408 0.6
Church of God (Cleveland, Tennessee) Evangelical Protestant 34 4,995 0.9
Church of God of Prophecy Evangelical Protestant 4 212 0.0
Church of Jesus Christ of Latter-day Saints, The Other Theology 22 8,862 1.7
Church of the Brethren Evangelical Protestant 5 637 0.1
Church of the Nazarene Evangelical Protestant 38 3,861 0.7
Churches of Christ Evangelical Protestant 51 7,614 1.4
Community of Christ Evangelical Protestant 3 329 0.1
Conservative Baptist Association of America Evangelical Protestant 16 3,220 0.6
Conservative Congregational Christian Conference Evangelical Protestant 1 236 0.0
Cumberland Presbyterian Church Evangelical Protestant 2 53 0.0
Episcopal Church Mainline Protestant 74 22,255 4.1
Evangelical Covenant Church, The Evangelical Protestant 38 9,841 1.8
Evangelical Free Church of America, The Evangelical Protestant 40 8,678 1.6
Evangelical Lutheran Church in America Mainline Protestant 160 63,421 11.8
Evangelical Mennonite Church Evangelical Protestant 2 52 0.0
Free Methodist Church of North America Evangelical Protestant 4 226 0.0
Friends (Quakers) Mainline Protestant 7 602 0.1
General Association of Regular Baptist Churches Evangelical Protestant 4 849 0.2
Greek Orthodox Archdiocese of America Orthodox 19 29,049 5.4
Hindu Other Theology 13 n.a. n.a.
Independent, Charismatic Churches Evangelical Protestant 7 4,775 0.9
Independent, Non-Charismatic Churches Evangelical Protestant 17 8,027 1.5
International Church of the Foursquare Gospel Evangelical Protestant 5 1,419 0.3
International Churches of Christ Evangelical Protestant 1 4,582 0.9
International Council of Community Churches Mainline Protestant 16 8,196 1.5
International Pentecostal Holiness Church Evangelical Protestant 2 86 0.0
Jain Other Theology 1 n.a. n.a.
Jewish Estimate Other Theology 117 234,400 43.6
Lutheran Church--Missouri Synod Evangelical Protestant 135 63,814 11.9
Macedonian Orthodox Church: American Diocese Orthodox 1 800 0.2
Malankara Archdiocese of the Syrian Orthodox Church in North America Orthodox 2 300 0.1
Malankara Orthodox Syrian Church, American Diocese of the Orthodox 3 1,000 0.2
Mennonite Brethren Churches, U.S. Conference of Evangelical Protestant 1 14 0.0
Mennonite Church USA Evangelical Protestant 17 2,974 0.6
Missionary Church, The Evangelical Protestant 1 297 0.1
Muslim Estimate Other Theology 46 95,623 17.8
National Association of Congregational Christian Churches Mainline Protestant 6 1,044 0.2
National Association of Free Will Baptists Evangelical Protestant 2 216 0.0
National Primitive Baptist Convention, USA Evangelical Protestant 5 669 0.1
Netherlands Reformed Congregations Evangelical Protestant 1 31 0.0
New Testament Association of Independent Baptist Churches and other Fundamental Baptist Associations/Fellowships Evangelical Protestant 9 2,543 0.5
North American Baptist Conference Evangelical Protestant 5 873 0.2
Orthodox Church in America: Bulgarian Diocese Orthodox 1 1,830 0.3
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox 2 3,000 0.6
Orthodox Church in America: Territorial Dioceses Orthodox 6 2,244 0.4
Orthodox Presbyterian Church, The Evangelical Protestant 3 374 0.1
Pentecostal Church of God Evangelical Protestant 1 80 0.0
Presbyterian Church (U.S.A.) Mainline Protestant 101 36,966 6.9
Presbyterian Church in America Evangelical Protestant 13 1,403 0.3
Primitive Baptist Churches--Old Line Evangelical Protestant 2 n.a. n.a.
Protestant Reformed Churches in America Evangelical Protestant 2 564 0.1
Reformed Church in America Mainline Protestant 22 8,818 1.6
Russian Orthodox Church Outside of Russia Orthodox 1 n.a. n.a.
Salvation Army, The Evangelical Protestant 19 6,128 1.1
Serbian Orthodox Church in the USA Orthodox 2 7,500 1.4
Serbian Orthodox Church in the USA (New Gracanica Metropolitanate) Orthodox 4 n.a. n.a.
Seventh-day Adventist Church Evangelical Protestant 58 15,521 2.9
Sikh Other Theology 2 n.a. n.a.
Southern Baptist Convention Evangelical Protestant 150 63,084 11.7
Southwide Baptist Fellowship Evangelical Protestant 1 n.a. n.a.
Ukrainian Orthodox Church of the USA Orthodox 3 1,356 0.3
Unitarian Universalist Association of Congregations Other Theology 12 2,671 0.5
United Church of Christ Mainline Protestant 110 52,747 9.8
United Methodist Church, The Mainline Protestant 144 42,712 7.9
United Reformed Churches in North America Evangelical Protestant 3 775 0.1
Universal Fellowship of Metropolitan Community Churches Mainline Protestant 3 174 0.0
Vineyard USA Evangelical Protestant 6 1,434 0.3
Wesleyan Church, The Evangelical Protestant 4 948 0.2
Wisconsin Evangelical Lutheran Synod Evangelical Protestant 5 1,826 0.3
Totals (Unadjusted)*: 2,345 3,097,948  
Total (Adjusted)**:   4,251,783  

The population of this county (or equivalent) in 1990 was 5,105,067; in 2000 it was 5,376,741. The total population changed 5.3%. The unadjusted adherent totals of the religious groups listed above (3,097,948) include 57.6% of the total population in 2000. The adjusted total adherents (4,251,783) include 79.1% 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]


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