Ohio

Denominational Groups, 2000

1,132,162	1,458,104	48,991	2,231,832	230,480	6,251,571
Evangelical Protestant	Mainline Protestant	Orthodox	Catholic	Other	Unclaimed

Congregational "adherents" include all full members, their children, and others who regularly attend services. The historically African American denominations are not included in the 2000 congregation and membership totals. Many are also missing in 1990 and most historically African American denominations are missing in the 1980 reports.
[More information on the data sources]

Reports

Religious Bodies	Theology	Congregations	Adherents	% Change
Old Order Amish Church	Evangelical Protestant	+86	-10,587	-30.1%
Assemblies of God	Evangelical Protestant	+35	-1,611	-2.3%
Church of Jesus Christ of Latter-day Saints, The	Other Theology	+22	+7,845	25.3%
Church of God (Cleveland, Tennessee)	Evangelical Protestant	+20	+18,435	50.4%
National Association of Free Will Baptists	Evangelical Protestant	+17	-1,535	-10.8%
Salvation Army, The	Evangelical Protestant	+14	+15,092	233.8%
Christian and Missionary Alliance, The	Evangelical Protestant	+10	+3,733	14.7%
Conservative Congregational Christian Conference	Evangelical Protestant	+10	+2,876	183.9%
Evangelical Free Church of America, The	Evangelical Protestant	+10	+3,352	171.1%
International Pentecostal Holiness Church	Evangelical Protestant	+8	+822	59.6%
Presbyterian Church in America	Evangelical Protestant	+4	+1,402	88.7%
Ukrainian Orthodox Church of the USA	Orthodox	+4	n.a.	n.a.
Friends (Quakers)	Mainline Protestant	+3	-3,117	-23.2%
Lutheran Church--Missouri Synod	Evangelical Protestant	+3	-3,360	-4.0%
Southern Baptist Convention	Evangelical Protestant	+3	-992	-0.5%
Beachy Amish Mennonite Churches	Evangelical Protestant	+2	+352	23.5%
Church of God (Anderson, Indiana)	Evangelical Protestant	+2	+769	2.6%
Evangelical Mennonite Church	Evangelical Protestant	+2	+86	5.2%
Pentecostal Church of God	Evangelical Protestant	+2	+1,295	40.9%
Apostolic Christian Church of America, Inc.	Evangelical Protestant	+1	+856	41.9%
Brethren In Christ Church	Evangelical Protestant	+1	-72	-7.4%
Independent, Charismatic Churches	Evangelical Protestant	+1	+26	0.1%
Midwest Congregational Christian Fellowship	Evangelical Protestant	+1	+45	6.7%
Old Missionary Baptists Associations	Evangelical Protestant	+1	+15	8.9%
American Carpatho-Russian Orthodox Greek Catholic Church	Orthodox	0	+489	89.6%
Apostolic Christian Churches (Nazarene)	Evangelical Protestant	0	+239	16.0%
Armenian Apostolic Church / Catholicossate of Cilicia	Orthodox	0	-245	-70.0%
Baptist Missionary Association of America	Evangelical Protestant	0	-1	-0.5%
Brethren Church, The (Ashland, Ohio)	Evangelical Protestant	0	+1,849	40.1%
Church of God in Christ, Mennonite	Evangelical Protestant	0	+72	25.4%
Conservative Baptist Association of America	Evangelical Protestant	0	n.a.	n.a.
Evangelical Presbyterian Church	Evangelical Protestant	0	+438	57.3%
Moravian Church in America--Northern Province	Mainline Protestant	0	-342	-14.2%
North American Baptist Conference	Evangelical Protestant	0	+341	15.6%
Orthodox Church in America: Albanian Orthodox Archdiocese	Orthodox	0	n.a.	n.a.
Orthodox Church in America: Romanian Orthodox Episcopate of America	Orthodox	0	n.a.	n.a.
Primitive Methodist Church in the USA	Evangelical Protestant	0	-110	-37.5%
Reformed Church in the United States	Evangelical Protestant	0	-37	-26.2%
Wayne Trail Missionary Baptist Association	Evangelical Protestant	0	-82	-3.3%
Allegheny Wesleyan Methodist Connection	Evangelical Protestant	-1	-99	-18.3%
Greek Orthodox Archdiocese of America	Orthodox	-1	n.a.	n.a.
International Church of the Foursquare Gospel	Evangelical Protestant	-1	+1,721	27.7%
National Association of Congregational Christian Churches	Mainline Protestant	-1	-688	-10.0%
Reformed Church in America	Mainline Protestant	-1	+170	8.1%
Baptist General Conference	Evangelical Protestant	-2	+497	14.2%
Christian Reformed Church in North America	Evangelical Protestant	-2	-374	-26.4%
Church of God General Conference	Evangelical Protestant	-2	-98	-14.8%
Churches of God, General Conference	Evangelical Protestant	-2	-31	-0.7%
Congregational Christian Churches, Additional (not part of any national CCC body)	Mainline Protestant	-2	-77	-51.7%
Free Methodist Church of North America	Evangelical Protestant	-2	+709	18.1%
Missionary Church, The	Evangelical Protestant	-2	+226	7.3%
Unitarian Universalist Association of Congregations	Other Theology	-2	-415	-6.4%
Christian Churches and Churches of Christ	Evangelical Protestant	-3	+6,741	5.0%
Episcopal Church	Mainline Protestant	-3	-10,618	-15.3%
International Pentecostal Church of Christ	Evangelical Protestant	-3	+781	53.8%
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	-3	-177	-3.8%
Churches of Christ	Evangelical Protestant	-4	-477	-1.0%
Church of the Brethren	Evangelical Protestant	-6	-1,929	-9.3%
Enterprise Baptists Association	Evangelical Protestant	-6	-341	-14.6%
Orthodox Church in America: Territorial Dioceses	Orthodox	-6	n.a.	n.a.
Seventh-day Adventist Church	Evangelical Protestant	-8	-1,552	-6.3%
Church of the Nazarene	Evangelical Protestant	-9	-2,892	-3.2%
Church of God of Prophecy	Evangelical Protestant	-12	-1,020	-35.9%
American Baptist Churches in the USA	Mainline Protestant	-14	-9,462	-7.4%
Evangelical Lutheran Church in America	Mainline Protestant	-18	-18,272	-5.7%
Presbyterian Church (U.S.A.)	Mainline Protestant	-18	-44,921	-21.8%
Christian Church (Disciples of Christ)	Mainline Protestant	-22	+3,410	5.1%
Jewish Estimate	Other Theology	-24	+17,423	14.0%
Wesleyan Church, The	Evangelical Protestant	-28	+5,958	44.0%
Independent, Non-Charismatic Churches	Evangelical Protestant	-37	-19,652	-21.1%
Mennonite Church USA	Evangelical Protestant	-52	-5,907	-26.2%
Catholic Church	Catholic	-57	+90,055	4.2%
United Church of Christ	Mainline Protestant	-59	-38,169	-19.5%
United Methodist Church, The	Mainline Protestant	-87	-90,023	-13.7%
	Totals:	-238	-81,165	-1.6%

The population of these 88 counties (or equivalents) in 1990 was 10,847,115; in 2000 it was 11,353,140. The total population changed 4.7%. The adherent totals for 1990 (5,437,630) represent 50.1% of the 1990 population. The adherent totals for 2000 (5,101,569) include 44.9% of the 2000 population. There is sufficient data for 68 groups to calculate 1990-2000 change. These 68 groups had 4,994,954 adherents in 1990 and 4,913,789 adherents in 2000, for a change of -1.6%

Sources

The 2000 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and includes statistics for 149 religious groups, including number of churches and adherents. Dale E. Jones, Sherri Doty, Clifford Grammich, James E. Horsch, Richard Houseal, Mac Lynn, John P. Marcum, Kenneth M. Sanchagrin and Richard H. Taylor supervised the collection. These data originally appeared in Religious Congregations & Membership in the United States, 2000, published by the Glenmary Research Center.

The 1990 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 132 religious groups, including number of churches and adherents. Martin B. Bradley, Norman M. Green, Jr., Dale E. Jones, Mac Lynn, and Lou McNeil supervised the collection. These data originally appeared in Churches and Church Membership in the United States, 1990, published by the Glenmary Research Center.

[More information on these data sources]