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Polk County (Iowa)

Religious Traditions, 2010

53,822 5,275 61,821 62,867 646 9,331 236,878
Evangelical Protestant Black Protestant Mainline Protestant Catholic Orthodox 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 % Change
Southern Baptist Convention Evangelical Protestant Baptist +6 +4075 +500%
Assemblies of God Evangelical Protestant Pentecostal +4 -670 -6.7%
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist +4 +2517 +119.7%
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran +4 -254 -3.2%
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints +3 +2056 +116.4%
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal +2 +92 +69.2%
Muslim Estimate Other Other Groups +2 +506 +41.5%
Seventh-day Adventist Church Evangelical Protestant Adventist +2 +487 +50.3%
American Baptist Churches in the USA Mainline Protestant Baptist +1 -22 -1.7%
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal +1 --- ---
Church of the Nazarene Evangelical Protestant Holiness +1 +118 +9.3%
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist +1 -238 -39.8%
Free Methodist Church of North America Evangelical Protestant Holiness +1 +4 +5.4%
Mennonite Church USA Evangelical Protestant European Free-Church +1 +81 +97.6%
United Methodist Church, The Mainline Protestant Methodist/Pietist +1 -784 -3.9%
Brethren In Christ Church Evangelical Protestant European Free-Church 0 --- ---
Catholic Church Catholic Catholicism 0 +4740 +8.2%
Christian and Missionary Alliance, The Evangelical Protestant Holiness 0 +36 +11.8%
Christian Church (Disciples of Christ) Mainline Protestant Baptist 0 -1584 -15.8%
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 0 +195 +53.1%
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 0 +27 +77.1%
Church of God of Prophecy Evangelical Protestant Pentecostal 0 +24 +27.9%
Church of the Brethren Evangelical Protestant European Free-Church 0 -62 -29.8%
Conservative Baptist Association of America Evangelical Protestant Baptist 0 --- ---
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 0 -607 -21.4%
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 0 -180 -30.4%
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 0 -177 -56.9%
General Association of Regular Baptist Churches Evangelical Protestant Baptist 0 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 0 -96 -18.1%
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 0 --- ---
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 0 +9 +15%
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 0 -62 -57.4%
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 0 -10 -11.5%
Pentecostal Church of God Evangelical Protestant Pentecostal 0 +84 +336%
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 0 -1 -1.4%
Reformed Church in America Mainline Protestant Presbyterian-Reformed 0 +771 +26.8%
Salvation Army Evangelical Protestant Holiness 0 -1853 -80%
Unitarian Universalist Association of Congregations Other Liberal 0 +242 +76.8%
United Church of Christ Mainline Protestant Presbyterian-Reformed 0 +215 +4.2%
Vineyard USA Evangelical Protestant Pentecostal 0 +195 +130%
Bahá'í Other Other Groups -1 +12 +9.8%
Churches of Christ Evangelical Protestant Baptist -1 +21 +3%
Community of Christ Other Latter-day Saints -1 -51 -9.7%
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed -1 -2047 -29.1%
Sikh Other Other Groups -1 --- ---
Wesleyan Church, The Evangelical Protestant Holiness -1 -196 -51%
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran -1 -74 -27%
Christian Churches and Churches of Christ Evangelical Protestant Baptist -2 -318 -14.6%
Evangelical Lutheran Church in America Mainline Protestant Lutheran -10 -7082 -30%
African Methodist Episcopal Church Black Protestant Methodist/Pietist --- --- ---
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist --- --- ---
Christian Brethren Evangelical Protestant Ind. Fundamentalist --- --- ---
Christian Methodist Episcopal Church Black Protestant Methodist/Pietist --- --- ---
Church of Christ, Scientist Other Christian Science --- --- ---
Church of God (Seventh Day) Evangelical Protestant Adventist --- --- ---
Church of God in Christ Black Protestant Pentecostal --- --- ---
Conservative Judaism Other Judaism --- --- ---
Conservative Yearly Meetings of Friends* Evangelical Protestant European Free-Church --- --- ---
Coptic Orthodox Church Orthodox Eastern Liturgical (Orthodox) --- --- ---
Covenant Reformed Presbyterian Church Evangelical Protestant Presbyterian-Reformed --- --- ---
Friends United Meeting* Mainline Protestant European Free-Church --- --- ---
Full Gospel Baptist Church Fellowship Black Protestant Baptist --- --- ---
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist --- --- ---
Jehovah's Witnesses Other Adventist --- --- ---
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran --- --- ---
Malankara Orthodox Syrian Church Orthodox Eastern Liturgical (Orthodox) --- --- ---
National Baptist Convention, USA, Inc. Black Protestant Baptist --- --- ---
National Missionary Baptist Convention, Inc. Black Protestant Baptist --- --- ---
Non-denominational Evangelical Protestant
----
--- --- ---
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal --- --- ---
Orthodox Judaism Other Judaism --- --- ---
Presbyterian Reformed Church Evangelical Protestant Presbyterian-Reformed --- --- ---
Reform Judaism Other Judaism --- --- ---
Serbian Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) --- --- ---
United Pentecostal Church International Evangelical Protestant Pentecostal --- --- ---
United Reformed Churches in North America Evangelical Protestant Presbyterian-Reformed --- --- ---
Unity Churches, Association of Other Other Groups --- --- ---
Zoroastrian Other Other Groups --- --- ---
Totals: +15 +139 +0.1%

The population of Polk County, Iowa was 374,601 in 2000; in 1990 it was 327,140. The total population changed 14.5%. The adherent totals of the religious groups listed above (180,521) included 48.2% of the total population in 2000.

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.


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