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Fairfield County, Ohio

Religious Traditions, 2010

20,742   17,001   17,500 1,916 88,997
Evangelical Protestant Black Protestant Mainline Protestant Orthodox 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 % Change
American Baptist Churches in the USA Mainline Protestant Baptist +0 -18 -29.0%
Amish Groups, undifferentiated* Evangelical Protestant European Free-Church --- --- ---
Assemblies of God Evangelical Protestant Pentecostal -1 +631 +132.8%
Bahá'í Other Other Groups +0 +3 +42.9%
Beachy Amish Mennonite Churches* Evangelical Protestant European Free-Church --- --- ---
Catholic Church Catholic Catholicism +0 +3,186 +22.3%
Christian Churches and Churches of Christ Evangelical Protestant Restoration Movement -2 +2,343 +80.0%
Christian Union Evangelical Protestant Other Groups +0 --- ---
Church of Christ, Scientist Other Christian Science --- --- ---
Church of God (Anderson, Indiana) Evangelical Protestant Holiness +0 +39 +21.7%
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal -1 +202 +38.5%
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints +1 +584 +49.1%
Church of the Nazarene Evangelical Protestant Holiness -2 -130 -11.2%
Church of the United Brethren in Christ Evangelical Protestant Methodist/Pietist --- --- ---
Churches of Christ Evangelical Protestant Restoration Movement +0 +370 +88.3%
Churches of Christ in Christian Union Evangelical Protestant Holiness --- --- ---
Community of Christ Other Latter-day Saints +0 +57 +75.0%
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism +0 -58 -13.3%
Evangelical Lutheran Church in America Mainline Protestant Lutheran -2 -426 -8.3%
Fellowship of Evangelical Churches Evangelical Protestant European Free-Church --- --- ---
General Association of Regular Baptist Churches Evangelical Protestant Baptist +0 --- ---
Grace Brethren Churches, Fellowship of Mainline Protestant European Free-Church --- --- ---
Independent Baptist Fellowship International Evangelical Protestant Baptist --- --- ---
International Pentecostal Holiness Church Evangelical Protestant Pentecostal --- --- ---
Jehovah's Witnesses Other Adventist --- --- ---
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran +0 -165 -15.1%
National Association of Free Will Baptists Evangelical Protestant Baptist +0 +13 +8.4%
Non-denominational Evangelical Protestant
--- --- ---
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed +0 -326 -23.1%
Salvation Army Evangelical Protestant Holiness +0 -20 -12.6%
Seventh-day Adventist Church Evangelical Protestant Adventist --- --- ---
Southern Baptist Convention Evangelical Protestant Baptist +2 +1,522 +96.0%
United Church of Christ Mainline Protestant Presbyterian-Reformed -2 -411 -28.6%
United Methodist Church, The Mainline Protestant Methodist/Pietist -3 -401 -4.0%
United Pentecostal Church International Evangelical Protestant Pentecostal --- --- ---
Unity Churches, Association of Other Other Groups --- --- ---
Vineyard USA Evangelical Protestant Pentecostal +0 +724 +187.1%
Wesleyan Church, The Evangelical Protestant Holiness +0 -174 -87.0%
Totals: -10 +7,545 +17%

The population of Fairfield County, Ohio was 146,156 in 2010; in 2000 it was 122,759. The total population changed 19.1%. The adherent totals of the religious groups listed above (57,159) included 39.1% of the total population in 2010.

The population of Fairfield County, Ohio was 122,759 in 2000; in 1990 it was 103,461. The total population changed 18.7%. The adherent totals of the religious groups listed above (44,929) included 36.6% of the total population in 2000.

* 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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