County Membership Report
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Du Page County, Illinois

Denominational Groups, 2000

74,185 80,157 7,815 349,415 20,837 371,752
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.
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Reports


Religious Bodies Theology Congregations Adherents % Change
American Baptist Churches in the USA Mainline Protestant +3 -42 -6.4%
Evangelical Free Church of America, The Evangelical Protestant +3 +621 29.0%
Christian Reformed Church in North America Evangelical Protestant +2 +1,444 45.1%
Independent, Non-Charismatic Churches Evangelical Protestant +2 -1,881 -24.0%
Presbyterian Church (U.S.A.) Mainline Protestant +2 -1,502 -13.0%
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox +1 +2,838 955.6%
Assemblies of God Evangelical Protestant +1 +2,466 30.9%
Catholic Church Catholic +1 +57,240 19.6%
Christian Church (Disciples of Christ) Mainline Protestant +1 +149 32.7%
Church of the Nazarene Evangelical Protestant +1 +551 139.1%
Evangelical Lutheran Church in America Mainline Protestant +1 +2,289 9.3%
Greek Orthodox Archdiocese of America Orthodox +1 n.a. n.a.
Southern Baptist Convention Evangelical Protestant +1 -106 -4.7%
Wesleyan Church, The Evangelical Protestant +1 +20 5.1%
Baptist General Conference Evangelical Protestant 0 -113 -12.5%
Christian and Missionary Alliance, The Evangelical Protestant 0 +72 4.5%
Church of God (Cleveland, Tennessee) Evangelical Protestant 0 +208 203.9%
Church of God General Conference Evangelical Protestant 0 +7 28.0%
Church of Jesus Christ of Latter-day Saints, The Other Theology 0 +28 1.0%
Churches of Christ Evangelical Protestant 0 -54 -6.4%
Conservative Baptist Association of America Evangelical Protestant 0 n.a. n.a.
Evangelical Presbyterian Church Evangelical Protestant 0 +184 92.9%
Free Methodist Church of North America Evangelical Protestant 0 -31 -41.3%
Friends (Quakers) Mainline Protestant 0 -56 -44.4%
Mennonite Church USA Evangelical Protestant 0 -49 -20.9%
North American Baptist Conference Evangelical Protestant 0 -42 -8.5%
Reformed Church in America Mainline Protestant 0 -192 -21.5%
Salvation Army, The Evangelical Protestant 0 +609 217.5%
Seventh-day Adventist Church Evangelical Protestant 0 -293 -9.0%
Ukrainian Orthodox Church of the USA Orthodox 0 n.a. n.a.
Unitarian Universalist Association of Congregations Other Theology 0 -233 -23.3%
United Methodist Church, The Mainline Protestant 0 -2,316 -10.3%
Wisconsin Evangelical Lutheran Synod Evangelical Protestant 0 +127 21.7%
Church of God (Anderson, Indiana) Evangelical Protestant -1 -129 -67.5%
Church of the Brethren Evangelical Protestant -1 -36 -6.3%
National Association of Congregational Christian Churches Mainline Protestant -1 -306 -56.6%
Presbyterian Church in America Evangelical Protestant -1 +386 43.5%
United Church of Christ Mainline Protestant -1 -2,321 -14.1%
Episcopal Church Mainline Protestant -2 -248 -3.6%
Jewish Estimate Other Theology -3 -30,036 -94.1%
Lutheran Church--Missouri Synod Evangelical Protestant -3 +708 2.6%
Christian Churches and Churches of Christ Evangelical Protestant -4 +1,450 78.3%
  Totals: +4 +31,411 +6.6%

The population of this county (or equivalent) in 1990 was 781,666; in 2000 it was 904,161. The total population changed 15.7%. The adherent totals for 1990 (483,537) represent 61.9% of the 1990 population. The adherent totals for 2000 (532,409) include 58.9% of the 2000 population. The totals represent the change in groups that reported in both 1990 and 2000 only. There is sufficient data for 39 groups to calculate 1990-2000 change. These 39 groups had 475,920 adherents in 1990 and 507,331 adherents in 2000, for a change of 6.6%

Sources

The 2000 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and includes statistics for 149 religious groups, including number of churches and adherents. Dale E. Jones, Sherri Doty, Clifford Grammich, James E. Horsch, Richard Houseal, Mac Lynn, John P. Marcum, Kenneth M. Sanchagrin and Richard H. Taylor supervised the collection. These data originally appeared in Religious Congregations & Membership in the United States, 2000, published by the Glenmary Research Center.

The 1990 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 132 religious groups, including number of churches and adherents. Martin B. Bradley, Norman M. Green, Jr., Dale E. Jones, Mac Lynn, and Lou McNeil supervised the collection. These data originally appeared in Churches and Church Membership in the United States, 1990, published by the Glenmary Research Center.

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