State Membership Report
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Iowa

Denominational Groups, 2000

346,243 775,045 2,865 558,092 29,181 1,214,898
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
Advent Christian Church Evangelical Protestant 2 113 0.0
African Methodist Episcopal Zion Church Evangelical Protestant 1 269 0.1
American Association of Lutheran Churches Evangelical Protestant 9 1,810 0.7
American Baptist Churches in the USA Mainline Protestant 124 32,175 11.6
Apostolic Christian Church of America, Inc. Evangelical Protestant 8 1,443 0.5
Assemblies of God Evangelical Protestant 131 21,650 7.8
Association of Free Lutheran Congregations, The Evangelical Protestant 4 559 0.2
Baptist General Conference Evangelical Protestant 34 6,005 2.2
Beachy Amish Mennonite Churches Evangelical Protestant 2 243 0.1
Black Baptists Estimate Evangelical Protestant n.a. 14,188 5.1
Brethren Church, The (Ashland, Ohio) Evangelical Protestant 1 223 0.1
Brethren In Christ Church Evangelical Protestant 2 68 0.0
Catholic Church Catholic 564 520,322 187.4
Christian and Missionary Alliance, The Evangelical Protestant 28 3,871 1.4
Christian Brethren Evangelical Protestant 37 2,968 1.1
Christian Church (Disciples of Christ) Mainline Protestant 167 50,771 18.3
Christian Churches and Churches of Christ Evangelical Protestant 123 24,137 8.7
Christian Reformed Church in North America Evangelical Protestant 62 21,129 7.6
Church of Christ, Scientist Other Theology 24 n.a. n.a.
Church of God (Anderson, Indiana) Evangelical Protestant 11 670 0.2
Church of God (Cleveland, Tennessee) Evangelical Protestant 16 1,335 0.5
Church of God (Seventh Day) Evangelical Protestant 1 73 0.0
Church of God General Conference Evangelical Protestant 4 102 0.0
Church of God of Prophecy Evangelical Protestant 12 328 0.1
Church of Jesus Christ of Latter-day Saints, The Other Theology 37 10,383 3.7
Church of the Brethren Evangelical Protestant 31 3,599 1.3
Church of the Lutheran Brethren of America Evangelical Protestant 6 483 0.2
Church of the Nazarene Evangelical Protestant 72 12,934 4.7
Church of the United Brethren in Christ Evangelical Protestant 4 82 0.0
Churches of Christ Evangelical Protestant 73 4,006 1.4
Churches of God, General Conference Evangelical Protestant 10 658 0.2
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant 8 530 0.2
Conservative Baptist Association of America Evangelical Protestant 17 n.a. n.a.
Conservative Congregational Christian Conference Evangelical Protestant 2 547 0.2
Cumberland Presbyterian Church Evangelical Protestant 1 124 0.0
Episcopal Church Mainline Protestant 67 14,198 5.1
Evangelical Free Church of America, The Evangelical Protestant 51 8,056 2.9
Evangelical Lutheran Church in America Mainline Protestant 519 265,423 95.6
Evangelical Lutheran Synod Evangelical Protestant 19 1,795 0.7
Evangelical Methodist Church Evangelical Protestant 1 10 0.0
Evangelical Presbyterian Church Evangelical Protestant 1 209 0.1
Free Methodist Church of North America Evangelical Protestant 21 1,073 0.4
Friends (Quakers) Mainline Protestant 51 6,235 2.3
Greek Orthodox Archdiocese of America Orthodox 6 n.a. n.a.
Independent Fundamental Churches of America Evangelical Protestant 17 n.a. n.a.
Independent, Charismatic Churches Evangelical Protestant 4 5,520 2.0
Independent, Non-Charismatic Churches Evangelical Protestant 14 7,525 2.7
International Church of the Foursquare Gospel Evangelical Protestant 28 3,262 1.2
Jewish Estimate Other Theology 20 6,701 2.4
Latvian Evangelical Lutheran Church in America Mainline Protestant 1 75 0.0
Lutheran Church--Missouri Synod Evangelical Protestant 293 124,021 44.7
Mennonite Church USA Evangelical Protestant 33 5,304 1.9
Missionary Church, The Evangelical Protestant 7 376 0.1
National Association of Congregational Christian Churches Mainline Protestant 12 2,473 0.9
National Association of Free Will Baptists Evangelical Protestant 1 102 0.0
Netherlands Reformed Congregations Evangelical Protestant 2 1,525 0.6
North American Baptist Conference Evangelical Protestant 14 2,782 1.0
Old Order Amish Church Evangelical Protestant 23 3,450 1.2
Old Order River Brethren Evangelical Protestant 1 64 0.0
Open Bible Standard Churches, Inc. Evangelical Protestant 47 n.a. n.a.
Pentecostal Church of God Evangelical Protestant 6 478 0.2
Presbyterian Church (U.S.A.) Mainline Protestant 311 85,186 30.7
Presbyterian Church in America Evangelical Protestant 6 768 0.3
Primitive Methodist Church in the USA Evangelical Protestant 2 24 0.0
Reformed Church in America Mainline Protestant 74 33,337 12.0
Reformed Church in the United States Evangelical Protestant 1 196 0.1
Salvation Army, The Evangelical Protestant 21 2,794 1.0
Seventh-day Adventist Church Evangelical Protestant 55 5,426 2.0
Southern Baptist Convention Evangelical Protestant 60 13,960 5.0
Unitarian Universalist Association of Congregations Other Theology 11 2,157 0.8
United Church of Christ Mainline Protestant 209 59,450 21.4
United Methodist Church, The Mainline Protestant 887 272,098 98.0
Wesleyan Church, The Evangelical Protestant 25 5,615 2.0
Wisconsin Evangelical Lutheran Synod Evangelical Protestant 11 1,596 0.6
Totals (Unadjusted)*: 4,560 1,681,062  
The population of these counties (or equivalents) in 1990 was 2,776,755. The adherent totals of the religious groups listed above (1,681,062) include 60.5% of the total population in 1990.

Source

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.

[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 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.