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Clark County (Ohio)

Religious Traditions, 2010

18,482 1,281 12,863 9,130 225 1,508 94,844
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 7 12,166 84.05
United Methodist Church, The Mainline Protestant Methodist/Pietist 32 7,193 49.70
Evangelical Lutheran Church in America Mainline Protestant Lutheran 15 5,916 40.87
Southern Baptist Convention Evangelical Protestant Baptist 9 3,052 21.09
Christian Churches and Churches of Christ Evangelical Protestant Baptist 7 2,770 19.14
Church of the Nazarene Evangelical Protestant Holiness 7 1,828 12.63
United Church of Christ Mainline Protestant Presbyterian-Reformed 8 1,759 12.15
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 6 1,707 11.79
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 8 1,534 10.60
General Association of Regular Baptist Churches Evangelical Protestant Baptist 4 1,371 9.47
American Baptist Churches in the USA Mainline Protestant Baptist 6 1,300 8.98
Church of the Brethren Evangelical Protestant European Free-Church 2 1,036 7.16
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 1 789 5.45
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 3 783 5.41
National Association of Free Will Baptists Evangelical Protestant Baptist 8 606 4.19
Christian Church (Disciples of Christ) Mainline Protestant Baptist 2 563 3.89
Churches of Christ Evangelical Protestant Baptist 6 491 3.39
International Pentecostal Church of Christ Evangelical Protestant Pentecostal 2 471 3.25
Mennonite Church USA Evangelical Protestant European Free-Church 3 440 3.04
Assemblies of God Evangelical Protestant Pentecostal 3 378 2.61
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 1 345 2.38
Seventh-day Adventist Church Evangelical Protestant Adventist 3 304 2.10
Salvation Army Evangelical Protestant Holiness 1 287 1.98
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 1 279 1.93
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 1 235 1.62
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 211 1.46
Jewish Other Judaism 1 200 1.38
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 192 1.33
Missionary Church, The Evangelical Protestant Holiness 2 150 1.04
Wesleyan Church, The Evangelical Protestant Holiness 1 150 1.04
Pentecostal Church of God Evangelical Protestant Pentecostal 2 143 0.99
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 140 0.97
Church of God General Conference Evangelical Protestant Adventist 2 134 0.93
Vineyard USA Evangelical Protestant Pentecostal 1 124 0.86
Friends (Quakers) Mainline Protestant European Free-Church 1 118 0.82
Muslim Estimate Other Other Groups 2 110 0.76
American Baptist Association, The Evangelical Protestant Baptist 1 62 0.43
Enterprise Baptists Association Evangelical Protestant Baptist 1 57 0.39
Brethren In Christ Church Evangelical Protestant European Free-Church 1 39 0.27
Bahá'í Other Other Groups 0 11 0.08
Primitive Baptist Church, The Evangelical Protestant Baptist 1 --- ---
Totals: 165 49,444  

The population of Clark County, Ohio was 144,742 in 2000; in 1990 it was 147,548. The total population changed -1.9%. The adherent totals of the religious groups listed above (49,444) included 34.2% 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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