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Carroll County, Illinois - 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 3 3,252 207.11
United Methodist Church Mainline Protestant Methodist Family 10 2,113 134.57
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 4 749 47.70
Church of the Brethren Evangelical Protestant Friends/Brethren Family 3 382 24.33
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 2 340 21.65
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 2 261 16.62
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 1 156 9.94
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 1 141 8.98
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 1 102 6.50
Churches of God, General Conference Evangelical Protestant Presbyterian/Reformed Family 1 76 4.84
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 2 75 4.78
Berea Amish Mennonite Evangelical Protestant Mennonite/Amish Family 1 50 3.18
National Association of Congregational Christian Churches Mainline Protestant Congregationalists (United Church of Christ) Family 1 47 2.99
Seventh-day Adventist Church Evangelical Protestant Adventist Family 1 38 2.42
Southern Baptist Convention Evangelical Protestant Baptist Family 1 34 2.17
Mennonite Church, USA Evangelical Protestant Mennonite/Amish Family 1 31 1.97
Baha'i Faith Other Other Groups Family 0 2 0.13
Fellowship of Christian Assemblies Evangelical Protestant Pentecostal Family 1
Brethren Church (Ashland, Ohio) Evangelical Protestant Friends/Brethren Family 2
Evangelical Free Church of America Evangelical Protestant Methodist Family 1

Religious Traditions (1980 - 2020), Percent of Population

The population of this county was 15,702 in 2020. The adherent totals of the religious groups listed above (7,849) included 50.0% 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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