County Membership Report
 Maps and Reports > Select Counties >
Search Maps & Reports:

Mahoning County (Ohio)

Religious Traditions, 2010

27,561 9,651 22,947 71,180 4,037 1,437 102,010
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 44 109,985 415.34
Black Baptists Estimate Evangelical Protestant Baptist --- 13,284 50.17
United Methodist Church, The Mainline Protestant Methodist/Pietist 21 9,140 34.52
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 23 8,941 33.76
Evangelical Lutheran Church in America Mainline Protestant Lutheran 19 8,290 31.31
Assemblies of God Evangelical Protestant Pentecostal 15 4,795 18.11
United Church of Christ Mainline Protestant Presbyterian-Reformed 9 4,342 16.40
American Baptist Churches in the USA Mainline Protestant Baptist 9 3,398 12.83
Christian Churches and Churches of Christ Evangelical Protestant Baptist 10 3,309 12.50
Independent, Non-Charismatic Churches Evangelical Protestant
4 2,750 10.38
Christian Church (Disciples of Christ) Mainline Protestant Baptist 7 2,535 9.57
Jewish Other Judaism 5 2,020 7.63
Southern Baptist Convention Evangelical Protestant Baptist 8 1,759 6.64
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 6 1,636 6.18
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 5 1,617 6.11
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 2 1,524 5.76
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 4 1,361 5.14
Church of the Nazarene Evangelical Protestant Holiness 6 1,159 4.38
Seventh-day Adventist Church Evangelical Protestant Adventist 5 791 2.99
Churches of Christ Evangelical Protestant Baptist 7 703 2.65
Friends (Quakers) Mainline Protestant European Free-Church 4 696 2.63
Mennonite Church USA Evangelical Protestant European Free-Church 5 456 1.72
Evangelical Presbyterian Church Evangelical Protestant Presbyterian-Reformed 1 435 1.64
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 3 323 1.22
Independent, Charismatic Churches Evangelical Protestant Pentecostal 1 300 1.13
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 1 254 0.96
Evangelical Congregational Church, The Evangelical Protestant Methodist/Pietist 1 252 0.95
Free Methodist Church of North America Evangelical Protestant Holiness 3 244 0.92
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 1 242 0.91
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 3 236 0.89
Unitarian Universalist Association of Congregations Other Liberal 1 200 0.76
Salvation Army Evangelical Protestant Holiness 1 195 0.74
Church of the Brethren Evangelical Protestant European Free-Church 2 176 0.66
Primitive Methodist Church in the USA Evangelical Protestant Methodist/Pietist 1 149 0.56
American Carpatho-Russian Orthodox Diocese Orthodox Eastern Liturgical (Orthodox) 1 136 0.51
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 123 0.46
Christian and Missionary Alliance, The Evangelical Protestant Holiness 1 58 0.22
Allegheny Wesleyan Methodist Connection Evangelical Protestant Methodist/Pietist 1 21 0.08
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 9 0.03
Christian Brethren Evangelical Protestant Ind. Fundamentalist 1 7 0.03
Church of Christ, Scientist Other Christian Science 1 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 3 --- ---
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 1 --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 2 --- ---
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Totals: 251 187,851  

The population of Mahoning County, Ohio was 264,806 in 1990; in 1980 it was 289,487. The total population changed -8.5%. The adherent totals of the religious groups listed above (187,851) included 70.9% 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.

Bookmark and Share