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Decatur, IL, Metropolitan Statistical Area

Religious Traditions, 2010

24,556 1,699 11,982 11,451 125 4,490 56,465
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
American Baptist Churches in the USA Mainline Protestant Baptist 1 714 6.09
Assemblies of God Evangelical Protestant Pentecostal 4 1,520 12.97
Black Baptists Estimate Evangelical Protestant Baptist --- 4,342 37.05
Catholic Church Catholic Catholicism 8 13,618 116.19
Christ Catholic Church Evangelical Protestant Catholicism 1 12 0.10
Christian and Missionary Alliance, The Evangelical Protestant Holiness 1 49 0.42
Christian Church (Disciples of Christ) Mainline Protestant Baptist 9 5,250 44.79
Christian Churches and Churches of Christ Evangelical Protestant Baptist 5 1,637 13.97
Church of Christ, Scientist Other Christian Science 1 --- ---
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 6 587 5.01
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 1 185 1.58
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 2 581 4.96
Church of the Brethren Evangelical Protestant European Free-Church 1 145 1.24
Church of the Nazarene Evangelical Protestant Holiness 5 1,965 16.77
Churches of Christ Evangelical Protestant Baptist 4 789 6.73
Churches of God, General Conference Evangelical Protestant Presbyterian-Reformed 11 1,638 13.98
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 1 607 5.18
Evangelical Lutheran Church in America Mainline Protestant Lutheran 3 1,620 13.82
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 3 2,141 18.27
Free Methodist Church of North America Evangelical Protestant Holiness 1 328 2.80
Friends (Quakers) Mainline Protestant European Free-Church 1 15 0.13
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 2 --- ---
Jewish Other Judaism 1 210 1.79
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 8 6,566 56.02
National Association of Free Will Baptists Evangelical Protestant Baptist 1 321 2.74
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 7 3,293 28.10
Salvation Army Evangelical Protestant Holiness 1 203 1.73
Seventh-day Adventist Church Evangelical Protestant Adventist 3 160 1.37
Southern Baptist Convention Evangelical Protestant Baptist 12 4,522 38.58
Unitarian Universalist Association of Congregations Other Liberal 1 109 0.93
United Church of Christ Mainline Protestant Presbyterian-Reformed 2 693 5.91
United Methodist Church, The Mainline Protestant Methodist/Pietist 25 10,452 89.18
Wesleyan Church, The Evangelical Protestant Holiness 1 70 0.60
Totals: 134 64,342  

The population of the Decatur, IL, Metropolitan Statistical Area was 117,206 in 1990; in 1980 it was 131,375. The total population changed -10.8%. The adherent totals of the religious groups listed above (64,342) included 54.9% 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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