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Black Hawk County, Iowa - County Membership Report (2020)

Exact definitions of "congregations" and "adherents" vary by religious body. Congregations may be parishes, churches, synagogues, mosques, temples, or another site where a religious body has regularly scheduled worship services. Adherents generally are members, children who are not members, and others who are not members but are considered participants in the congregation.

[More information on the data sources]

Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Catholic Church Catholic Catholic Liturgical Family 11 19,423 148.10
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 14 8,447 64.41
National Baptist Convention, USA, Inc. Black Protestant Baptist Family 5 6,615 50.44
Reformed Church in America Mainline Protestant Presbyterian/Reformed Family 2 3,686 28.11
United Methodist Church Mainline Protestant Methodist Family 14 3,394 25.88
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 12 3,170 24.17
Muslim Estimate Islam Islam Family 3 2,715 20.70
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 7 1,922 14.66
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 7 1,659 12.65
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 3 1,377 10.50
National Missionary Baptist Convention of America Black Protestant Baptist Family 7 1,188 9.06
Association of Vineyard Churches Evangelical Protestant Pentecostal Family 4 1,110 8.46
Wesleyan Church Evangelical Protestant Holiness Family 5 977 7.45
Southern Baptist Convention Evangelical Protestant Baptist Family 7 929 7.08
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 5 914 6.97
African Methodist Episcopal Church Black Protestant Methodist Family 1 800 6.10
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 4 758 5.78
Church of God in Christ Black Protestant Pentecostal Family 3 670 5.11
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 2 534 4.07
Church of the Nazarene Evangelical Protestant Holiness Family 4 499 3.80
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 3 451 3.44
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 3 415 3.16
Church of the Brethren Evangelical Protestant Friends/Brethren Family 2 392 2.99
Episcopal Church Mainline Protestant Anglican/Episcopal Family 2 381 2.91
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 2 266 2.03
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian/Reformed Family 1 266 2.03
Seventh-day Adventist Church Evangelical Protestant Adventist Family 2 181 1.38
Churches of Christ Evangelical Protestant Restorationists Family 2 157 1.20
Unitarian Universalist Association Other Christians Liberal Family 1 142 1.08
Open Bible Churches Evangelical Protestant Pentecostal Family 2 130 0.99
Full Gospel Baptist Church Fellowship International Black Protestant Baptist Family 1 126 0.96
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran Family 1 120 0.92
Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 1 82 0.63
Salvation Army Evangelical Protestant Holiness Family 1 63 0.48
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) Family 1 60 0.46
International Church of the Foursquare Gospel Evangelical Protestant Pentecostal Family 1 52 0.40
Mennonite Church, USA Evangelical Protestant Mennonite/Amish Family 1 48 0.37
Church of God General Conference (Abrahamic Faith, McDonough, GA) Evangelical Protestant Adventist Family 1 38 0.29
Baha'i Faith Other Other Groups Family 0 37 0.28
Presbyterian Church in America Evangelical Protestant Presbyterian/Reformed Family 1 23 0.18
Fellowship of Grace Brethren Churches Mainline Protestant Friends/Brethren Family 2
American Association of Lutheran Churches Evangelical Protestant Lutheran Family 2
North American Baptist Conference Evangelical Protestant Baptist Family 1
Converge Worldwide Evangelical Protestant Baptist Family 2
Orthodox Presbyterian Church Evangelical Protestant Presbyterian/Reformed Family 1
Brethren Church (Ashland, Ohio) Evangelical Protestant Friends/Brethren Family 1
General Association of Regular Baptist Churches Evangelical Protestant Baptist Family 4
Evangelical Free Church of America Evangelical Protestant Methodist Family 1
United Pentecostal Church International Evangelical Protestant Pentecostal Family 1
Community of Christ Evangelical Protestant Latter-day Saints (Mormonism) Family 1
Christian Brethren (Plymouth Brethren) Evangelical Protestant Independent Fundamentalist Family 4

Religious Traditions (1980 - 2020), Percent of Population

The population of this county was 131,144 in 2020. The adherent totals of the religious groups listed above (64,217) included 49.0% of the total population in 2020. The adherence rate is the number of adherents of a given group per 1,000 people in the general population.

Note that data collection methods for religious bodies change over time, affecting the comparability of statistics. For further information, see the U.S. Religion Census website at

The 2020 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include data for 372 religious bodies or groups. Of these, the ASARB was able to gather data on congregations and adherents for 217 and on congregations only for 155.

[More information on the data sources]

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