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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
Allegheny Wesleyan Methodist Connection Evangelical Protestant Methodist/Pietist 2 21 0.08
American Baptist Churches in the USA Mainline Protestant Baptist 7 1,928 7.49
American Carpatho-Russian Orthodox Diocese Orthodox Eastern Liturgical (Orthodox) 1 207 0.80
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox Eastern Liturgical (Orthodox) 1 336 1.30
Assemblies of God Evangelical Protestant Pentecostal 17 7,472 29.01
Association of Free Lutheran Congregations Evangelical Protestant Lutheran 1 0 0.00
Bahá'í Other Other Groups 0 32 0.12
Catholic Church Catholic Catholicism 44 100,351 389.63
Christian and Missionary Alliance, The Evangelical Protestant Holiness 1 120 0.47
Christian Church (Disciples of Christ) Mainline Protestant Baptist 6 2,194 8.52
Christian Churches and Churches of Christ Evangelical Protestant Baptist 9 2,861 11.11
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 4 407 1.58
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 3 313 1.22
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 1 512 1.99
Church of the Brethren Evangelical Protestant European Free-Church 2 155 0.60
Church of the Nazarene Evangelical Protestant Holiness 7 977 3.79
Churches of Christ Evangelical Protestant Baptist 6 694 2.69
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 1 301 1.17
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 3 1,264 4.91
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 5 1,126 4.37
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 1 439 1.70
Evangelical Lutheran Church in America Mainline Protestant Lutheran 18 8,184 31.78
Evangelical Presbyterian Church Evangelical Protestant Presbyterian-Reformed 1 651 2.53
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 2 227 0.88
Free Methodist Church of North America Evangelical Protestant Holiness 2 236 0.92
Friends (Quakers) Mainline Protestant European Free-Church 5 581 2.26
General Association of Regular Baptist Churches Evangelical Protestant Baptist 5 576 2.24
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 3 2,550 9.90
Hindus Other Other Groups 2 --- ---
Independent, Charismatic Churches Evangelical Protestant Pentecostal 1 800 3.11
Independent, Non-Charismatic Churches Evangelical Protestant
1 700 2.72
Jewish Other Judaism 4 2,800 10.87
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 6 1,430 5.55
Mennonite Church USA Evangelical Protestant European Free-Church 3 380 1.48
Mennonite; Other Groups Evangelical Protestant European Free-Church 1 7 0.03
Muslim Estimate Other Other Groups 2 480 1.86
National Association of Free Will Baptists Evangelical Protestant Baptist 1 75 0.29
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 341 1.32
Orthodox Church in America: Bulgarian Diocese Orthodox Eastern Liturgical (Orthodox) 1 141 0.55
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox Eastern Liturgical (Orthodox) 1 250 0.97
Patriarchal Parishes of the Russian Orthodox Church in the USA Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 21 7,030 27.30
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 111 0.43
Primitive Methodist Church in the USA Evangelical Protestant Methodist/Pietist 1 61 0.24
Salvation Army Evangelical Protestant Holiness 3 566 2.20
Serbian Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 1 1,400 5.44
Serbian Orthodox Church in the USA (New Gracanica Metropolitanate) Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Seventh-day Adventist Church Evangelical Protestant Adventist 3 565 2.19
Southern Baptist Convention Evangelical Protestant Baptist 8 1,945 7.55
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) 1 1,050 4.08
Unitarian Universalist Association of Congregations Other Liberal 1 124 0.48
United Church of Christ Mainline Protestant Presbyterian-Reformed 7 3,478 13.50
United Methodist Church, The Mainline Protestant Methodist/Pietist 23 8,971 34.83
Totals: 254 167,420  

The population of Mahoning County, Ohio was 257,555 in 2000; in 1990 it was 264,806. The total population changed -2.7%. The adherent totals of the religious groups listed above (167,420) included 65.0% 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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