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McLean County (Illinois)

Religious Traditions, 2010

34,238 880 22,803 15,215 58 8,580 87,798
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]


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Catholic Church Catholic Catholicism 10 16,893 130.77
United Methodist Church, The Mainline Protestant Methodist/Pietist 26 11,088 85.83
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 7 5,405 41.84
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 9 4,856 37.59
Christian Churches and Churches of Christ Evangelical Protestant Baptist 7 3,966 30.70
Evangelical Lutheran Church in America Mainline Protestant Lutheran 6 3,937 30.48
Christian Church (Disciples of Christ) Mainline Protestant Baptist 14 3,619 28.02
Independent, Non-Charismatic Churches Evangelical Protestant
1 1,800 13.93
Black Baptists Estimate Evangelical Protestant Baptist --- 1,674 12.96
Southern Baptist Convention Evangelical Protestant Baptist 4 1,348 10.44
American Baptist Churches in the USA Mainline Protestant Baptist 7 1,261 9.76
Mennonite Church USA Evangelical Protestant European Free-Church 5 1,079 8.35
Apostolic Christian Church of America, Inc. Evangelical Protestant European Free-Church 2 780 6.04
Assemblies of God Evangelical Protestant Pentecostal 2 749 5.80
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 1 643 4.98
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 2 595 4.61
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 2 562 4.35
Churches of Christ Evangelical Protestant Baptist 5 561 4.34
Church of the Nazarene Evangelical Protestant Holiness 2 466 3.61
United Church of Christ Mainline Protestant Presbyterian-Reformed 2 459 3.55
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 272 2.11
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 3 222 1.72
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 217 1.68
Salvation Army Evangelical Protestant Holiness 1 201 1.56
Jewish Other Judaism 1 170 1.32
Seventh-day Adventist Church Evangelical Protestant Adventist 1 108 0.84
Christian and Missionary Alliance, The Evangelical Protestant Holiness 1 104 0.81
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 88 0.68
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 88 0.68
Wesleyan Church, The Evangelical Protestant Holiness 3 77 0.60
Pentecostal Church of God Evangelical Protestant Pentecostal 1 76 0.59
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 1 65 0.50
Free Methodist Church of North America Evangelical Protestant Holiness 1 56 0.43
Fellowship of Evangelical Churches Evangelical Protestant European Free-Church 1 44 0.34
Advent Christian Church Evangelical Protestant Adventist 1 30 0.23
Friends (Quakers) Mainline Protestant European Free-Church 1 25 0.19
National Association of Free Will Baptists Evangelical Protestant Baptist 1 12 0.09
Christ Catholic Church Evangelical Protestant Catholicism 1 5 0.04
Church of Christ, Scientist Other Christian Science 1 --- ---
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 2 --- ---
Totals: 139 63,601  

The population of McLean County, Illinois was 129,180 in 1990; in 1980 it was 119,149. The total population changed 8.4%. The adherent totals of the religious groups listed above (63,601) included 49.2% 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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