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Winnebago 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 16 68,043 238.45
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 47 30,272 106.09
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 7 16,113 56.47
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 20 7,777 27.25
United Methodist Church Mainline Protestant Methodist Family 21 5,876 20.59
National Baptist Convention, USA, Inc. Black Protestant Baptist Family 7 3,436 12.04
Muslim Estimate Islam Islam Family 2 3,371 11.81
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 10 2,642 9.26
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 10 2,338 8.19
Southern Baptist Convention Evangelical Protestant Baptist Family 14 2,168 7.60
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 7 1,863 6.53
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 3 1,801 6.31
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 3 1,386 4.86
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 6 1,270 4.45
Full Gospel Christian Assemblies International Evangelical Protestant Pentecostal Family 2 1,200 4.21
National Missionary Baptist Convention of America Black Protestant Baptist Family 5 1,176 4.12
Churches of Christ Evangelical Protestant Restorationists Family 9 1,152 4.04
Church of God in Christ Black Protestant Pentecostal Family 4 930 3.26
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 4 912 3.20
Evangelical Covenant Church Evangelical Protestant Methodist Family 4 802 2.81
African Methodist Episcopal Church Black Protestant Methodist Family 3 776 2.72
Salvation Army Evangelical Protestant Holiness Family 2 673 2.36
Seventh-day Adventist Church Evangelical Protestant Adventist Family 4 630 2.21
Buddhism, Theravada Buddhism Buddhism Family 3 609 2.13
Unitarian Universalist Association Other Christians Liberal Family 2 600 2.10
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 3 587 2.06
Serbian Orthodox Church in North and South America Orthodox Eastern Liturgical (Orthodox) Family 1 500 1.75
Church of the Nazarene Evangelical Protestant Holiness Family 6 479 1.68
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian/Reformed Family 1 408 1.43
General Association of General Baptists Evangelical Protestant Baptist Family 2 370 1.30
Episcopal Church Mainline Protestant Anglican/Episcopal Family 2 330 1.16
National Baptist Convention of America International, Inc. Black Protestant Baptist Family 1 300 1.05
Reform Judaism Judaism Judaism Family 1 216 0.76
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran Family 1 170 0.60
Open Bible Churches Evangelical Protestant Pentecostal Family 1 166 0.58
Baha'i Faith Other Other Groups Family 1 166 0.58
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal Family 1 164 0.57
American Baptist Association Evangelical Protestant Baptist Family 1 162 0.57
Church of God (Anderson, Indiana) Evangelical Protestant Holiness Family 2 140 0.49
National Association of Congregational Christian Churches Mainline Protestant Congregationalists (United Church of Christ) Family 1 128 0.45
Church of our Lord Jesus Christ of the Apostolic Faith, Inc. Black Protestant Pentecostal Family 1 126 0.44
American Carpatho-Russian Orthodox Diocese of the USA Orthodox Eastern Liturgical (Orthodox) Family 1 120 0.42
National Association of Free Will Baptists Evangelical Protestant Baptist Family 1 95 0.33
Christian Methodist Episcopal Church Black Protestant Methodist Family 1 90 0.32
Church of God General Conference (Abrahamic Faith, McDonough, GA) Evangelical Protestant Adventist Family 2 76 0.27
Wesleyan Church Evangelical Protestant Holiness Family 1 48 0.17
Conservative Judaism Judaism Judaism Family 1 38 0.13
Friends General Conference Mainline Protestant Friends/Brethren Family 1 14 0.05
Church of the United Brethren in Christ, USA Evangelical Protestant Methodist Family 1 13 0.05
Church of the Brethren Evangelical Protestant Friends/Brethren Family 1 0 0.00
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 3 0 0.00
Conservative Baptist Association of America (CBAmerica) Evangelical Protestant Baptist Family 1
Community of Christ Evangelical Protestant Latter-day Saints (Mormonism) Family 1
Church of God of Prophecy Evangelical Protestant Pentecostal Family 1
Evangelical Free Church of America Evangelical Protestant Methodist Family 6
Unity Churches, Association of Other Christians Other Groups Family 1
National Spiritualist Association of Churches Other Spiritualist Family 1
New Testament Association of Independent Baptist Churches Evangelical Protestant Baptist Family 1
Orthodox Presbyterian Church Evangelical Protestant Presbyterian/Reformed Family 1
Christian Brethren (Plymouth Brethren) Evangelical Protestant Independent Fundamentalist Family 1
General Conference of the Church of God (Seventh Day) Evangelical Protestant Adventist Family 1
American Sikh Council Other Other Groups Family 1
ECO: A Covenant Order of Evangelical Presbyterians Evangelical Protestant Presbyterian/Reformed Family 1
Church of the Living God (Christian Workers for Fellowship) Black Protestant Pentecostal Family 1
Fellowship of Christian Assemblies Evangelical Protestant Pentecostal Family 2
Grace Communion International Evangelical Protestant 1
Chabad Judaism Judaism 1
Christadelphians Other Christians Other Groups Family 1
Evangelical Presbyterian Church (1981) Evangelical Protestant Presbyterian/Reformed Family 1
United Pentecostal Church International Evangelical Protestant Pentecostal Family 7
Hindu Yoga and Meditation Hinduism 1
           

Religious Traditions (1980 - 2020), Percent of Population


The population of this county was 285,350 in 2020. The adherent totals of the religious groups listed above (162,722) included 57.0% 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 https://www.usreligioncensus.org/.

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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