Orange County, California

Religious Traditions, 2010

345,893	2,424	76,574	13,406	797,473	141,815	1,632,647
Evangelical Protestant	Black Protestant	Mainline Protestant	Orthodox	Catholic	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]

Reports

Religious Bodies	Tradition	Family	Congregations	Adherents	Adherence Rate^†
Non-denominational	Evangelical Protestant	----	193	122,205	40.6
Southern Baptist Convention	Evangelical Protestant	Baptist	133	69,216	23.0
Church of Jesus Christ of Latter-day Saints, The	Other	Latter-day Saints	121	66,772	22.2
Assemblies of God	Evangelical Protestant	Pentecostal	68	29,899	9.9
Catholic Church	Catholic	Catholicism	67	797,473	264.9
Buddhism, Mahayana	Other	Other Groups	56	24,964	8.3
Calvary Chapel Fellowship Churches	Evangelical Protestant	Pentecostal	48	---	---
United Methodist Church, The	Mainline Protestant	Methodist/Pietist	42	12,194	4.1
Presbyterian Church (U.S.A.)	Mainline Protestant	Presbyterian-Reformed	37	21,660	7.2
Evangelical Lutheran Church in America	Mainline Protestant	Lutheran	35	10,846	3.6
Foursquare Gospel, International Church of the	Evangelical Protestant	Pentecostal	34	5,898	2.0
Churches of Christ	Evangelical Protestant	Baptist	31	3,801	1.3
Lutheran Church--Missouri Synod	Evangelical Protestant	Lutheran	30	17,377	5.8
Jehovah's Witnesses	Other	Adventist	29	---	---
American Baptist Churches in the USA	Mainline Protestant	Baptist	26	6,357	2.1
Church of the Nazarene	Evangelical Protestant	Holiness	26	3,867	1.3
Bahá'í	Other	Other Groups	24	2,729	0.9
Christian Reformed Church in North America	Evangelical Protestant	Presbyterian-Reformed	23	3,014	1.0
Christian and Missionary Alliance, The	Evangelical Protestant	Holiness	22	9,387	3.1
Episcopal Church	Mainline Protestant	Episcopalianism/Anglicanism	22	11,531	3.8
Christian Churches and Churches of Christ	Evangelical Protestant	Baptist	20	15,668	5.2
Muslim Estimate	Other	Other Groups	20	24,674	8.2
Seventh-day Adventist Church	Evangelical Protestant	Adventist	20	10,894	3.6
Korean-American Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	17	---	---
Korean Presbyterian Church Abroad	Evangelical Protestant	Presbyterian-Reformed	16	---	---
Church of God (Cleveland, Tennessee)	Evangelical Protestant	Pentecostal	15	5,388	1.8
Evangelical Free Church of America, The	Evangelical Protestant	Methodist/Pietist	15	9,100	3.0
Korean Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	15	---	---
Christian Church (Disciples of Christ)	Mainline Protestant	Baptist	14	2,269	0.8
United Church of Christ	Mainline Protestant	Presbyterian-Reformed	14	1,978	0.7
Orthodox Judaism	Other	Judaism	13	1,350	0.4
Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	13	3,914	1.3
Church of Christ, Scientist	Other	Christian Science	12	---	---
Conservative Baptist Association of America	Evangelical Protestant	Baptist	11	---	---
Vineyard USA	Evangelical Protestant	Pentecostal	11	7,340	2.4
Evangelical Friends Church International*	Evangelical Protestant	European Free-Church	9	3,264	1.1
Independent Fundamental Churches of America	Evangelical Protestant	Ind. Fundamentalist	9	---	---
United Pentecostal Church International	Evangelical Protestant	Pentecostal	9	---	---
Free Methodist Church of North America	Evangelical Protestant	Holiness	8	1,105	0.4
North American Baptist Conference	Evangelical Protestant	Baptist	8	1,734	0.6
Anglican Church in North America	Evangelical Protestant	Episcopalianism/Anglicanism	7	---	---
Hindu, Post Renaissance	Other	Other Groups	7	303	0.1
Lutheran Congregations in Mission for Christ	Evangelical Protestant	Lutheran	7	8,965	3.0
Wesleyan Church, The	Evangelical Protestant	Holiness	7	204	0.1
Church of God (Anderson, Indiana)	Evangelical Protestant	Holiness	6	252	0.1
Church of God of Prophecy	Evangelical Protestant	Pentecostal	6	663	0.2
Converge Worldwide/Baptist General Conference	Evangelical Protestant	Baptist	6	1,800	0.6
Evangelical Covenant Church, The	Evangelical Protestant	Methodist/Pietist	6	3,482	1.2
Orthodox Presbyterian Church, The	Evangelical Protestant	Presbyterian-Reformed	6	340	0.1
Reform Judaism	Other	Judaism	6	8,232	2.7
Antiochian Orthodox Christian Archdiocese of North America, The	Orthodox	Eastern Liturgical (Orthodox)	5	1,831	0.6
Hindu, Indian-American Hindu Temple Assoc.	Other	Other Groups	5	4,204	1.4
Sikh	Other	Other Groups	5	---	---
Unitarian Universalist Association of Congregations	Other	Liberal	5	830	0.3
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	5	745	0.2
Conservative Judaism	Other	Judaism	4	3,280	1.1
Coptic Orthodox Church	Orthodox	Eastern Liturgical (Orthodox)	4	5,050	1.7
Salvation Army	Evangelical Protestant	Holiness	4	4,281	1.4
Unity Churches, Association of	Other	Other Groups	4	---	---
Buddhism, Theravada	Other	Other Groups	3	996	0.3
Community of Christ	Other	Latter-day Saints	3	492	0.2
General Association of Regular Baptist Churches	Evangelical Protestant	Baptist	3	---	---
Grace Brethren Churches, Fellowship of	Mainline Protestant	European Free-Church	3	---	---
Greek Orthodox Archdiocese of America	Orthodox	Eastern Liturgical (Orthodox)	3	2,575	0.9
National Association of Congregational Christian Churches	Mainline Protestant	Presbyterian-Reformed	3	337	0.1
Pentecostal Church of God	Evangelical Protestant	Pentecostal	3	326	0.1
Reformed Church in America	Mainline Protestant	Presbyterian-Reformed	3	9,273	3.1
African Methodist Episcopal Church	Black Protestant	Methodist/Pietist	2	1,657	0.6
American Baptist Association, The	Evangelical Protestant	Baptist	2	104	0.0
Buddhism, Vajrayana	Other	Other Groups	2	71	0.0
Church of God in Christ	Black Protestant	Pentecostal	2	460	0.2
Conservative Lutheran Association	Evangelical Protestant	Lutheran	2	---	---
Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	2	107	0.0
Hindu, Traditional Temples	Other	Other Groups	2	900	0.3
Metropolitan Community Churches, Universal Fellowship of	Mainline Protestant	Other Groups	2	79	0.0
North American Lutheran Church	Evangelical Protestant	Lutheran	2	---	---
United Reformed Churches in North America	Evangelical Protestant	Presbyterian-Reformed	2	---	---
Zoroastrian	Other	Other Groups	2	335	0.1
Armenian Apostolic Church of America (Catholicosate of Cilicia)	Orthodox	Eastern Liturgical (Orthodox)	1	360	0.1
Armenian Church of North America (Catholicosate of Etchmiadzin)	Orthodox	Eastern Liturgical (Orthodox)	1	1,200	0.4
Associate Reformed Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	1	37	0.0
Association of Free Lutheran Congregations	Evangelical Protestant	Lutheran	1	---	---
Association of Messianic Congregations	Other	Judaism	1	---	---
Christian Methodist Episcopal Church	Black Protestant	Methodist/Pietist	1	123	0.0
Church of God (Seventh Day)	Evangelical Protestant	Adventist	1	---	---
Church of God in Christ, Mennonite	Evangelical Protestant	European Free-Church	1	1	0.0
Church of the Brethren	Evangelical Protestant	European Free-Church	1	156	0.1
Church of the Lutheran Brethren of America	Evangelical Protestant	Lutheran	1	180	0.1
Eritrean Orthodox	Orthodox	Eastern Liturgical (Orthodox)	1	50	0.0
Full Gospel Baptist Church Fellowship	Black Protestant	Baptist	1	---	---
Grace Gospel Fellowship	Evangelical Protestant	Ind. Fundamentalist	1	---	---
Hindu, Renaissance	Other	Other Groups	1	12	0.0
Independent Yearly Meetings of Friends*	Mainline Protestant	European Free-Church	1	50	0.0
International Pentecostal Holiness Church	Evangelical Protestant	Pentecostal	1	141	0.0
Jain	Other	Other Groups	1	---	---
Mennonite Church USA	Evangelical Protestant	European Free-Church	1	52	0.0
Missionary Church, The	Evangelical Protestant	Holiness	1	60	0.0
National Association of Free Will Baptists	Evangelical Protestant	Baptist	1	56	0.0
National Baptist Convention, USA, Inc.	Black Protestant	Baptist	1	184	0.1
New Apostolic Church of North America, National Organization of the	Other	Other Groups	1	---	---
Orthodox Church in America	Orthodox	Eastern Liturgical (Orthodox)	1	1,000	0.3
Reconstructionist Judaism	Other	Judaism	1	1,671	0.6
Reformed Baptist Churches	Evangelical Protestant	Baptist	1	---	---
Reformed Church in the United States	Evangelical Protestant	Presbyterian-Reformed	1	49	0.0
Russian Orthodox Church Outside of Russia	Orthodox	Eastern Liturgical (Orthodox)	1	10	0.0
Serbian Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	1	250	0.1
Syriac Orthodox Church of Antioch	Orthodox	Eastern Liturgical (Orthodox)	1	1,080	0.4
U.S. Mennonite Brethren	Evangelical Protestant	European Free-Church	1	430	0.1
Union of Messianic Jewish Congregations	Other	Judaism	1	---	---
United Holy Church of America, Inc.	Black Protestant	Pentecostal	1	---	---
International Churches of Christ	Evangelical Protestant	Baptist	0	391	0.1
		Totals:	1,519	1,377,585

The population of Orange County, California was 3,010,232 in 2010; in 2000 it was 2,846,289. The total population changed 5.8%. The adherent totals of the religious groups listed above (1,377,585) included 45.8% of the total population in 2010.

^* 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 www.usreligioncensus.org for those who are interested in these trends.

Source

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.