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Polk County, Iowa

Religious Traditions, 2010

53,822 5,275 61,821 646 62,867 9,331 236,878
Evangelical Protestant Black Protestant Mainline Protestant Orthodox Catholic Other Unclaimed

Congregational adherents include all full members, their children, and others who regularly attend services. The 2010 reports contain incomplete counts of congregations and adherents belonging to the eight largest historically African-American denominations. These denominations are not included in the 2000 reports and are largely missing from the 1990 and 1980 reports.
[More information on the data sources]

Reports


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Non-denominational Evangelical Protestant
----
41 12,575 29.2
United Methodist Church, The Mainline Protestant Methodist/Pietist 40 19,147 44.5
Catholic Church Catholic Catholicism 19 62,867 146.0
Assemblies of God Evangelical Protestant Pentecostal 18 9,305 21.6
Christian Church (Disciples of Christ) Mainline Protestant Baptist 17 8,427 19.6
Evangelical Lutheran Church in America Mainline Protestant Lutheran 17 16,540 38.4
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 16 4,990 11.6
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 15 7,693 17.9
General Association of Regular Baptist Churches Evangelical Protestant Baptist 14 --- ---
Southern Baptist Convention Evangelical Protestant Baptist 13 4,890 11.4
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 12 4,620 10.7
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 11 1,052 2.4
American Baptist Churches in the USA Mainline Protestant Baptist 8 1,236 2.9
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 8 3,822 8.9
Churches of Christ Evangelical Protestant Baptist 8 725 1.7
Christian Churches and Churches of Christ Evangelical Protestant Baptist 7 1,858 4.3
Church of the Nazarene Evangelical Protestant Holiness 7 1,388 3.2
National Baptist Convention, USA, Inc. Black Protestant Baptist 7 3,113 7.2
United Pentecostal Church International Evangelical Protestant Pentecostal 7 --- ---
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 6 2,226 5.2
Church of God in Christ Black Protestant Pentecostal 5 831 1.9
Jehovah's Witnesses Other Adventist 5 --- ---
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran 5 4,125 9.6
Seventh-day Adventist Church Evangelical Protestant Adventist 5 1,456 3.4
United Church of Christ Mainline Protestant Presbyterian-Reformed 5 5,374 12.5
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 4 225 0.5
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 4 360 0.8
Muslim Estimate Other Other Groups 4 1,724 4.0
Reformed Church in America Mainline Protestant Presbyterian-Reformed 4 3,651 8.5
African Methodist Episcopal Church Black Protestant Methodist/Pietist 3 879 2.0
Buddhism, Theravada Other Other Groups 3 710 1.6
Community of Christ Other Latter-day Saints 3 474 1.1
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 3 413 1.0
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 2 --- ---
Christian and Missionary Alliance, The Evangelical Protestant Holiness 2 340 0.8
Church of God of Prophecy Evangelical Protestant Pentecostal 2 110 0.3
Church of the Brethren Evangelical Protestant European Free-Church 2 146 0.3
Free Methodist Church of North America Evangelical Protestant Holiness 2 78 0.2
Hindu, Post Renaissance Other Other Groups 2 101 0.2
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 2 --- ---
Mennonite Church USA Evangelical Protestant European Free-Church 2 164 0.4
Orthodox Judaism Other Judaism 2 200 0.5
Salvation Army Evangelical Protestant Holiness 2 464 1.1
Wesleyan Church, The Evangelical Protestant Holiness 2 188 0.4
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 1 138 0.3
Bahá'í Other Other Groups 1 135 0.3
Brethren In Christ Church Evangelical Protestant European Free-Church 1 --- ---
Buddhism, Mahayana Other Other Groups 1 11 0.0
Christian Brethren Evangelical Protestant Ind. Fundamentalist 1 --- ---
Christian Methodist Episcopal Church Black Protestant Methodist/Pietist 1 126 0.3
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 562 1.3
Church of Christ, Scientist Other Christian Science 1 --- ---
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 1 62 0.1
Church of God (Seventh Day) Evangelical Protestant Adventist 1 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 1 --- ---
Conservative Judaism Other Judaism 1 656 1.5
Conservative Yearly Meetings of Friends* Evangelical Protestant European Free-Church 1 89 0.2
Coptic Orthodox Church Orthodox Eastern Liturgical (Orthodox) 1 50 0.1
Covenant Reformed Presbyterian Church Evangelical Protestant Presbyterian-Reformed 1 --- ---
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 134 0.3
Friends United Meeting* Mainline Protestant European Free-Church 1 115 0.3
Full Gospel Baptist Church Fellowship Black Protestant Baptist 1 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 435 1.0
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 1 --- ---
Malankara Orthodox Syrian Church Orthodox Eastern Liturgical (Orthodox) 1 21 0.0
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 1 69 0.2
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 1 46 0.1
National Missionary Baptist Convention, Inc. Black Protestant Baptist 1 188 0.4
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 1 77 0.2
Pentecostal Church of God Evangelical Protestant Pentecostal 1 109 0.3
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 69 0.2
Presbyterian Reformed Church Evangelical Protestant Presbyterian-Reformed 1 --- ---
Reform Judaism Other Judaism 1 940 2.2
Serbian Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 1 140 0.3
Sikh Other Other Groups 1 --- ---
Unitarian Universalist Association of Congregations Other Liberal 1 557 1.3
United Reformed Churches in North America Evangelical Protestant Presbyterian-Reformed 1 --- ---
Unity Churches, Association of Other Other Groups 1 --- ---
Vineyard USA Evangelical Protestant Pentecostal 1 345 0.8
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 200 0.5
Zoroastrian Other Other Groups 0 1 0.0
Totals: 402 193,762  

The population of Polk County, Iowa was 430,640 in 2010; in 2000 it was 374,601. The total population changed 15.0%. The adherent totals of the religious groups listed above (193,762) included 45.0% of the total population in 2010.

* In an effort to better match the ASARB standards for adherents, a few religious bodies changed the way their adherents were reported in 2010, including the Catholic Church, Amish groups, Friends groups, Jewish groups, the Church of Jesus Christ of Latter-day Saints, Non-denominational Christian Churches, and the United Methodist Church. This change does not affect any of the data in the newly released 2010 U.S. Religion Census: Religious Congregations & Membership Study. In fact, the data for these groups are now more comparable to that of other bodies than it was in previous decadal reports.

However, the change in methodology can distort assessments on growth or decline between 2000 and 2010 for each of these groups. County-level 2000 data using the new methodology are not readily available. ASARB staff has adjusted some 2000 county-level adherent statistics to allow for a more accurate picture on growth or decline. The revised maps and charts are now available on-line at www.usreligioncensus.org for those who are interested in these trends.

Source

2010 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 236 religious groups, providing information on the number of their congregations and adherents within each state and county in the United States. Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E. Jones, Alexei Krindatch, Richie Stanley and Richard H. Taylor supervised the collection. These data originally appeared in 2010 U.S. Religion Census: Religious Congregations & Membership Study, published by the Association of Statisticians of American Religious Bodies (ASARB). [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 2010 the Episcopal Church had an adherence rate of 7.6 in Autauga County, Alabama. This means that about 8 out of every 1,000 people in Autauga County were Episcopalian.