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
Jewish Estimate	Other Theology	+58	+102,049	254.0%
Independent, Non-Charismatic Churches	Evangelical Protestant	+55	+73,680	n.a.
Southern Baptist Convention	Evangelical Protestant	+61	+34,950	23.0%
Church of God (Cleveland, Tennessee)	Evangelical Protestant	+10	+27,800	102.0%
Independent, Charismatic Churches	Evangelical Protestant	+28	+22,781	n.a.
Greek Orthodox Archdiocese of America	Orthodox	+22	+22,428	n.a.
Wesleyan Church, The	Evangelical Protestant	+93	+19,507	n.a.
Assemblies of God	Evangelical Protestant	+94	+18,293	37.0%
Church of Jesus Christ of Latter-day Saints, The	Other Theology	+52	+16,531	74.0%
National Association of Free Will Baptists	Evangelical Protestant	+167	+12,687	n.a.
Christian and Missionary Alliance, The	Evangelical Protestant	+29	+12,008	70.0%
Christian Churches and Churches of Christ	Evangelical Protestant	+5	+9,388	7.0%
Orthodox Church in America: Territorial Dioceses	Orthodox	+21	+4,957	n.a.
Evangelical Free Church of America, The	Evangelical Protestant	+20	+4,693	759.0%
Pentecostal Church of God	Evangelical Protestant	+40	+4,461	n.a.
Churches of God, General Conference	Evangelical Protestant	+33	+4,318	n.a.
Conservative Congregational Christian Conference	Evangelical Protestant	+17	+3,739	533.0%
Ukrainian Orthodox Church of the USA	Orthodox	+6	+3,584	2757.0%
International Church of the Foursquare Gospel	Evangelical Protestant	+16	+3,183	67.0%
Apostolic Christian Church of America, Inc.	Evangelical Protestant	+9	+2,899	n.a.
Seventh-day Adventist Church	Evangelical Protestant	-1	+2,562	13.0%
Brethren Church, The (Ashland, Ohio)	Evangelical Protestant	+2	+2,474	62.0%
Presbyterian Church in America	Evangelical Protestant	+11	+2,400	412.0%
Wayne Trail Missionary Baptist Association	Evangelical Protestant	+11	+2,385	n.a.
International Pentecostal Church of Christ	Evangelical Protestant	+21	+2,232	n.a.
Salvation Army, The	Evangelical Protestant	+17	+2,146	11.0%
Enterprise Baptists Association	Evangelical Protestant	+28	+1,999	n.a.
Orthodox Church in America: Romanian Orthodox Episcopate of America	Orthodox	+7	+1,911	n.a.
Church of God of Prophecy	Evangelical Protestant	+51	+1,824	n.a.
International Pentecostal Holiness Church	Evangelical Protestant	+10	+1,428	185.0%
Evangelical Presbyterian Church	Evangelical Protestant	+4	+1,202	n.a.
Baptist General Conference	Evangelical Protestant	0	+1,141	40.0%
American Carpatho-Russian Orthodox Greek Catholic Church	Orthodox	+5	+1,035	n.a.
Beachy Amish Mennonite Churches	Evangelical Protestant	+4	+729	65.0%
Midwest Congregational Christian Fellowship	Evangelical Protestant	+11	+719	n.a.
National Association of Congregational Christian Churches	Mainline Protestant	+3	+670	12.0%
Christian Union	Evangelical Protestant	+4	+545	19.0%
Orthodox Presbyterian Church, The	Evangelical Protestant	+3	+484	733.0%
Allegheny Wesleyan Methodist Connection	Evangelical Protestant	+23	+443	n.a.
Apostolic Christian Churches (Nazarene)	Evangelical Protestant	+1	+419	32.0%
North American Baptist Conference	Evangelical Protestant	-1	+386	18.0%
Evangelical Covenant Church, The	Evangelical Protestant	+2	+335	21.0%
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	+1	+288	7.0%
Evangelical Mennonite Church	Evangelical Protestant	+3	+225	15.0%
Orthodox Church in America: Albanian Orthodox Archdiocese	Orthodox	+1	+200	n.a.
Old Missionary Baptists Associations	Evangelical Protestant	+3	+183	n.a.
Church of God in Christ, Mennonite	Evangelical Protestant	0	+181	104.0%
Reformed Church in the United States	Evangelical Protestant	+1	+104	n.a.
Baptist Missionary Association of America	Evangelical Protestant	0	+92	95.0%
Congregational Christian Churches, Additional (not part of any national CCC body)	Mainline Protestant	+1	+72	n.a.
Reformed Church in America	Mainline Protestant	0	+48	2.0%
Armenian Apostolic Church / Catholicossate of Cilicia	Orthodox	0	+45	75.0%
American Baptist Association, The	Evangelical Protestant	-1	+25	3.0%
Association of Free Lutheran Congregations, The	Evangelical Protestant	+1	-10	-25.0%
Brethren In Christ Church	Evangelical Protestant	+2	-43	-4.0%
Missionary Church, The	Evangelical Protestant	-3	-56	-2.0%
Separate Baptists in Christ	Evangelical Protestant	-1	-69	-41.0%
Universal Fellowship of Metropolitan Community Churches	Mainline Protestant	+1	-108	-25.0%
Moravian Church in America--Northern Province	Mainline Protestant	0	-243	-10.0%
Unitarian Universalist Association of Congregations	Other Theology	+1	-253	-4.0%
Primitive Methodist Church in the USA	Evangelical Protestant	-1	-298	-62.0%
Christian Reformed Church in North America	Evangelical Protestant	-1	-308	-23.0%
Church of God General Conference	Evangelical Protestant	-2	-317	-36.0%
Conservative Baptist Association of America	Evangelical Protestant	-5	-2,072	-47.0%
Old Order Amish Church	Evangelical Protestant	+159	-2,224	-8.0%
Friends (Quakers)	Mainline Protestant	+20	-2,948	-22.0%
Church of the Brethren	Evangelical Protestant	-2	-3,073	-14.0%
Churches of Christ	Evangelical Protestant	+9	-3,483	-7.0%
Free Methodist Church of North America	Evangelical Protestant	-8	-4,997	-52.0%
Church of the Nazarene	Evangelical Protestant	+7	-5,635	-6.0%
Lutheran Church--Missouri Synod	Evangelical Protestant	+7	-7,075	-8.0%
American Baptist Churches in the USA	Mainline Protestant	0	-11,703	-9.0%
Christian Church (Disciples of Christ)	Mainline Protestant	-28	-16,393	-19.0%
Episcopal Church	Mainline Protestant	-4	-34,868	-37.0%
Church of God (Anderson, Indiana)	Evangelical Protestant	+20	-44,504	-59.0%
United Church of Christ	Mainline Protestant	-88	-53,739	-26.0%
Evangelical Lutheran Church in America	Mainline Protestant	-22	-56,037	-16.0%
Presbyterian Church (U.S.A.)	Mainline Protestant	-39	-97,759	-38.0%
United Methodist Church, The	Mainline Protestant	-142	-175,669	-24.0%
Catholic Church	Catholic	-106	-201,913	-8.0%
	Totals:	836	-290,929	-5.6%

The population of these 88 counties (or equivalents) in 1980 was 10,797,630; in 2000 it was 11,353,140. The total population changed 4.7%. The adherent totals for 1980 (5,275,375) represent 48.9% of the 1980 population. The adherent totals for 2000 (5,101,569) include 44.9% of the 2000 population. There is sufficient data for 80 groups to calculate 1980-2000 change. These 80 groups had 5,230,743 adherents in 1980 and 4,939,814 adherents in 2000, for a change of -5.6%

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 1980 data were collected by the Glenmary Research Center and include statistics for 111 Judeo-Christian church bodies, including number of churches and adherents. Bernard Quinn, Herman Anderson, Martin Bradley, Paul Goetting and Peggy Shriver supervised the collection. These data originally appeared in Churches and Church Membership in the United States, 1980, published by the Glenmary Research Center.

[More information on these data sources]