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Whiteside County (Illinois)

Religious Traditions, 2010

10,757 13,162 10,235 505 23,839
Evangelical Protestant Mainline Protestant 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]


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Catholic Church Catholic Catholicism 9 12,173 202.26
United Methodist Church, The Mainline Protestant Methodist/Pietist 14 6,126 101.78
Evangelical Lutheran Church in America Mainline Protestant Lutheran 7 4,795 79.67
Reformed Church in America Mainline Protestant Presbyterian-Reformed 8 3,709 61.63
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 4 1,831 30.42
Southern Baptist Convention Evangelical Protestant Baptist 5 1,759 29.23
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 4 1,510 25.09
United Church of Christ Mainline Protestant Presbyterian-Reformed 3 1,065 17.70
Christian Churches and Churches of Christ Evangelical Protestant Baptist 6 1,028 17.08
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 3 963 16.00
Church of the Nazarene Evangelical Protestant Holiness 3 898 14.92
Christian Church (Disciples of Christ) Mainline Protestant Baptist 2 835 13.87
Assemblies of God Evangelical Protestant Pentecostal 3 797 13.24
American Baptist Churches in the USA Mainline Protestant Baptist 4 745 12.38
Mennonite Church USA Evangelical Protestant European Free-Church 3 678 11.27
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 2 372 6.18
Salvation Army Evangelical Protestant Holiness 1 126 2.09
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 111 1.84
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 107 1.78
Advent Christian Church Evangelical Protestant Adventist 1 84 1.40
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 1 75 1.25
Brethren In Christ Church Evangelical Protestant European Free-Church 1 71 1.18
Evangelical Congregational Church, The Evangelical Protestant Methodist/Pietist 1 64 1.06
Church of the United Brethren in Christ Evangelical Protestant Methodist/Pietist 1 62 1.03
Seventh-day Adventist Church Evangelical Protestant Adventist 1 62 1.03
Free Methodist Church of North America Evangelical Protestant Holiness 1 32 0.53
Jewish Other Judaism 1 0 0.00
Conservative Baptist Association of America Evangelical Protestant Baptist 1 --- ---
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 1 --- ---
Totals: 93 40,078  

The population of Whiteside County, Illinois was 60,186 in 1990; in 1980 it was 65,970. The total population changed -8.8%. The adherent totals of the religious groups listed above (40,078) included 66.6% of the total population in 1990.

* 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 for those who are interested in these trends.


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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