California

Denominational Groups, 2000

2,450,003	1,118,209	142,752	10,079,310	1,823,359	18,258,015
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	Adherence Rate^†
Catholic Church	Catholic	1,250	4,759,250	201.1
Southern Baptist Convention	Evangelical Protestant	937	392,451	16.6
Church of Jesus Christ of Latter-day Saints, The	Other Theology	884	405,441	17.1
Assemblies of God	Evangelical Protestant	861	189,375	8.0
United Methodist Church, The	Mainline Protestant	714	290,720	12.3
Churches of Christ	Evangelical Protestant	676	88,415	3.7
Presbyterian Church (U.S.A.)	Mainline Protestant	526	261,279	11.0
American Baptist Churches in the USA	Mainline Protestant	492	194,594	8.2
Evangelical Lutheran Church in America	Mainline Protestant	464	205,831	8.7
Seventh-day Adventist Church	Evangelical Protestant	429	148,561	6.3
Episcopal Church	Mainline Protestant	426	184,330	7.8
Lutheran Church--Missouri Synod	Evangelical Protestant	376	148,292	6.3
Church of the Nazarene	Evangelical Protestant	372	82,071	3.5
International Church of the Foursquare Gospel	Evangelical Protestant	273	78,133	3.3
United Church of Christ	Mainline Protestant	243	67,979	2.9
Christian Churches and Churches of Christ	Evangelical Protestant	220	52,294	2.2
Christian Church (Disciples of Christ)	Mainline Protestant	184	50,016	2.1
Conservative Baptist Association of America	Evangelical Protestant	159	51,550	2.2
Church of God (Cleveland, Tennessee)	Evangelical Protestant	158	11,706	0.5
Jewish Estimate	Other Theology	130	76,539	3.2
American Baptist Association, The	Evangelical Protestant	126	13,974	0.6
Church of God (Anderson, Indiana)	Evangelical Protestant	117	34,896	1.5
Baptist General Conference	Evangelical Protestant	97	39,981	1.7
Evangelical Free Church of America, The	Evangelical Protestant	87	13,954	0.6
Christian and Missionary Alliance, The	Evangelical Protestant	87	14,991	0.6
Free Methodist Church of North America	Evangelical Protestant	75	17,811	0.8
Unitarian Universalist Association of Congregations	Other Theology	72	13,575	0.6
Salvation Army, The	Evangelical Protestant	66	21,105	0.9
Friends (Quakers)	Mainline Protestant	64	9,882	0.4
Evangelical Covenant Church, The	Evangelical Protestant	63	14,523	0.6
Christian Brethren	Evangelical Protestant	56	6,035	0.3
International Pentecostal Holiness Church	Evangelical Protestant	48	2,496	0.1
Christian Reformed Church in North America	Evangelical Protestant	45	15,097	0.6
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	41	7,096	0.3
Reformed Church in America	Mainline Protestant	36	30,778	1.3
National Association of Congregational Christian Churches	Mainline Protestant	33	16,589	0.7
Church of the Brethren	Evangelical Protestant	32	6,490	0.3
Open Bible Standard Churches, Inc.	Evangelical Protestant	30	8,125	0.3
Mennonite Brethren Churches, U.S. Conference of	Evangelical Protestant	28	5,348	0.2
African Methodist Episcopal Zion Church	Evangelical Protestant	27	14,484	0.6
Missionary Church, The	Evangelical Protestant	24	3,267	0.1
Orthodox Presbyterian Church, The	Evangelical Protestant	23	2,201	0.1
Universal Fellowship of Metropolitan Community Churches	Mainline Protestant	21	6,700	0.3
Baptist Missionary Association of America	Evangelical Protestant	18	2,733	0.1
Presbyterian Church in America	Evangelical Protestant	15	1,105	0.1
North American Baptist Conference	Evangelical Protestant	13	7,310	0.3
Church of God (Seventh Day)	Evangelical Protestant	12	564	0.0
Brethren In Christ Church	Evangelical Protestant	11	935	0.0
Advent Christian Church	Evangelical Protestant	9	897	0.0
Evangelical Methodist Church	Evangelical Protestant	9	617	0.0
Conservative Congregational Christian Conference	Evangelical Protestant	9	6,474	0.3
Apostolic Christian Churches (Nazarean)	Evangelical Protestant	7	279	0.0
Latvian Evangelical Lutheran Church in America	Mainline Protestant	5	1,214	0.1
Moravian Church in America--Northern Province	Mainline Protestant	4	912	0.0
Evangelical Lutheran Synod	Evangelical Protestant	4	285	0.0
Fire Baptized Holiness Church, (Wesleyan), The	Evangelical Protestant	4	48	0.0
Church of God in Christ, Mennonite	Evangelical Protestant	3	685	0.0
Brethren Church, The (Ashland, Ohio)	Evangelical Protestant	3	312	0.0
Berean Fundamental Church	Evangelical Protestant	3	221	0.0
Cumberland Presbyterian Church	Evangelical Protestant	3	1,027	0.0
Church of the Lutheran Brethren of America	Evangelical Protestant	2	265	0.0
Estonian Evangelical Lutheran Church	Mainline Protestant	2	780	0.0
Church of God General Conference	Evangelical Protestant	2	99	0.0
Seventh Day Baptist General Conference, USA and Canada	Evangelical Protestant	2	502	0.0
Protestant Reformed Churches in America	Evangelical Protestant	1	148	0.0
Apostolic Lutheran Church of America	Evangelical Protestant	1	119	0.0
Syrian Orthodox Church of Antioch	Orthodox	1	6,025	0.3
	*Totals (Unadjusted)^:**	11,215	8,091,781

The population of these counties (or equivalent) in 1980 was 23,667,902. The adherent totals of the religious groups listed above (8,091,781) include 34.2% of the total population in 1980.

Source

The 1980 data were collected by the Glenmary Research Center and includes statistics for 111 Judeo-Christian church bodies, including number of churches and adherents. These data originally appeared in Churches and Church Membership in the United States, 1980, published by the Glenmary Research Center.

^†The adherence rate provides the number of adherents of a particular group per 1,000 population. For example, in 2000 the Episcopal Church had an adherence rate of approximately 8 (8.1) in Autauga County, Alabama. This means that 8 out of every 1,000 people in Autauga county are Episcopalian.