US Religion Census Association of Religion Data Archives

from Association of Religion Data Archives

This is that survey that shows the dramatic growth of non-demoninational / evangelical churches, and that fastest growth in Mormon and Muslim groups.

http://www.thearda.com/rcms2010/rcms2010.asp?U=99&T=US&Y=2010&S=Name

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Explore congregational membership in every county, state and urban area in the United States. Based on the Religious Congregations and Membership Study this is the most complete census available on religious congregations and their members.

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U.S. Membership Report

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United States Religious Traditions, 2010

50,013,803	4,877,067	22,655,826	1,056,535	58,936,006	13,146,919	158,059,382
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

• 2010 Report
• 2000 Report
• 1990 Report
• 1980 Report
• 1980-2010 Change
• 1990-2010 Change
• 2000-2010 Change

Religious Bodies	Tradition	Family	Congregations	Adherents	Adherence Rate†
(Original) Church of God	Evangelical Protestant	Pentecostal	13	---	---
African Methodist Episcopal Church	Black Protestant	Methodist/Pietist	4,256	1,009,682	3.3
African Methodist Episcopal Zion Church	Black Protestant	Methodist/Pietist	1,657	301,005	1.0
Albanian Orthodox Diocese of America	Orthodox	Eastern Liturgical (Orthodox)	2	700	0.0
Allegheny Wesleyan Methodist Connection	Evangelical Protestant	Methodist/Pietist	99	4,031	0.0
Alliance of Baptists	Mainline Protestant	Baptist	124	---	---
Amana Church Society	Evangelical Protestant	Communal	1	433	0.0
Ambassadors Amish Mennonite*	Evangelical Protestant	European Free-Church	6	677	0.0
American Association of Lutheran Churches	Evangelical Protestant	Lutheran	70	---	---
American Baptist Association, The	Evangelical Protestant	Baptist	1,368	203,374	0.7
American Baptist Churches in the USA	Mainline Protestant	Baptist	5,243	1,560,572	5.1
American Carpatho-Russian Orthodox Diocese	Orthodox	Eastern Liturgical (Orthodox)	79	10,457	0.0
American Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	3	---	---
Amish Groups, undifferentiated*	Evangelical Protestant	European Free-Church	1,755	241,356	0.8
Anglican Church in North America	Evangelical Protestant	Episcopalianism/Anglicanism	913	---	---
Antiochian Orthodox Christian Archdiocese of North America, The	Orthodox	Eastern Liturgical (Orthodox)	249	74,527	0.2
Apostolic Christian Church of America, Inc.	Evangelical Protestant	European Free-Church	88	23,309	0.1
Apostolic Faith Mission of Portland, OR	Evangelical Protestant	Pentecostal	51	3,119	0.0
Apostolic Lutheran Church of America	Evangelical Protestant	Lutheran	52	---	---
Armenian Apostolic Church of America (Catholicosate of Cilicia)	Orthodox	Eastern Liturgical (Orthodox)	37	30,530	0.1
Armenian Church of North America (Catholicosate of Etchmiadzin)	Orthodox	Eastern Liturgical (Orthodox)	94	64,545	0.2
Armenian Evangelical Churches (Additional)	Evangelical Protestant	Presbyterian-Reformed	12	---	---
Assemblies of God	Evangelical Protestant	Pentecostal	12,258	2,944,887	9.5
Assemblies of God International Fellowship	Evangelical Protestant	Pentecostal	18	---	---
Associate Reformed Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	289	31,978	0.1
Association of Free Lutheran Congregations	Evangelical Protestant	Lutheran	276	---	---
Association of Messianic Congregations	Other	Judaism	12	---	---
Association of Reformed Baptist Churches of America	Evangelical Protestant	Baptist	67	---	---
Bahá'í	Other	Other Groups	1,130	171,449	0.6
Beachy Amish Mennonite Churches*	Evangelical Protestant	European Free-Church	97	12,311	0.0
Berea Amish Mennonite*	Evangelical Protestant	European Free-Church	11	914	0.0
Bible Fellowship Church	Evangelical Protestant	Holiness	62	13,653	0.0
Bible Presbyterian Church (General Synod)	Evangelical Protestant	Presbyterian-Reformed	20	---	---
Brethren Church, The (Ashland, Ohio)	Evangelical Protestant	European Free-Church	113	13,260	0.0
Brethren In Christ Church	Evangelical Protestant	European Free-Church	256	---	---
Bruderhof Communities, Inc.	Evangelical Protestant	European Free-Church	13	1,813	0.0
Buddhism, Mahayana	Other	Other Groups	1,836	732,783	2.4
Buddhism, Theravada	Other	Other Groups	422	203,900	0.7
Buddhism, Vajrayana	Other	Other Groups	596	55,000	0.2
Bulgarian Eastern Orthodox Diocese of the USA, Canada and Australia	Orthodox	Eastern Liturgical (Orthodox)	22	2,212	0.0
Calvary Chapel Fellowship Churches	Evangelical Protestant	Pentecostal	1,136	---	---
Canadian and American Reformed Churches	Evangelical Protestant	Presbyterian-Reformed	4	---	---
Catholic Church	Catholic	Catholicism	20,589	58,928,987	190.9
Central Yearly Meeting of Friends*	Evangelical Protestant	European Free-Church	8	290	0.0
Christian and Missionary Alliance, The	Evangelical Protestant	Holiness	1,978	428,721	1.4
Christian Brethren	Evangelical Protestant	Ind. Fundamentalist	183	---	---
Christian Church (Disciples of Christ)	Mainline Protestant	Baptist	3,625	785,776	2.5
Christian Churches and Churches of Christ	Evangelical Protestant	Baptist	5,293	1,453,160	4.7
Christian Methodist Episcopal Church	Black Protestant	Methodist/Pietist	1,462	290,601	0.9
Christian Reformed Church in North America	Evangelical Protestant	Presbyterian-Reformed	805	224,003	0.7
Christian Union	Evangelical Protestant	Other Groups	104	---	---
Church of Christ (Holiness), U.S.A	Evangelical Protestant	Holiness	172	---	---
Church of Christ, Scientist	Other	Christian Science	1,153	---	---
Church of God (Anderson, Indiana)	Evangelical Protestant	Holiness	2,125	225,753	0.7
Church of God (Cleveland, Tennessee)	Evangelical Protestant	Pentecostal	6,100	1,109,992	3.6
Church of God (Seventh Day)	Evangelical Protestant	Adventist	220	---	---
Church of God by Faith, Inc.	Evangelical Protestant	Pentecostal	162	---	---
Church of God General Conference	Evangelical Protestant	Adventist	84	3,842	0.0
Church of God in Christ	Black Protestant	Pentecostal	2,966	624,419	2.0
Church of God in Christ, Mennonite	Evangelical Protestant	European Free-Church	153	18,440	0.1
Church of God of Prophecy	Evangelical Protestant	Pentecostal	1,743	98,407	0.3
Church of God of the Apostolic Faith, Inc.	Evangelical Protestant	Pentecostal	55	---	---
Church of God, Mountain Assembly, Inc.	Evangelical Protestant	Pentecostal	101	---	---
Church of Jesus Christ of Latter-day Saints, The	Other	Latter-day Saints	13,601	6,144,582	19.9
Church of Our Lord Jesus Christ of the Apostolic Faith, Inc.	Black Protestant	Pentecostal	454	---	---
Church of the Brethren	Evangelical Protestant	European Free-Church	1,032	146,588	0.5
Church of the Lutheran Brethren of America	Evangelical Protestant	Lutheran	105	26,695	0.1
Church of the Lutheran Confession	Evangelical Protestant	Lutheran	79	---	---
Church of the Nazarene	Evangelical Protestant	Holiness	5,056	893,649	2.9
Church of the United Brethren in Christ	Evangelical Protestant	Methodist/Pietist	178	18,259	0.1
Churches of Christ	Evangelical Protestant	Baptist	12,584	1,584,162	5.1
Churches of Christ in Christian Union	Evangelical Protestant	Holiness	194	---	---
Churches of God, General Conference	Evangelical Protestant	Presbyterian-Reformed	330	39,331	0.1
Communion of Reformed Evangelical Churches	Evangelical Protestant	Presbyterian-Reformed	73	---	---
Community of Christ	Other	Latter-day Saints	792	123,189	0.4
Congregational Christian Churches, Additional (not part of any national CCC body)	Mainline Protestant	Presbyterian-Reformed	63	8,410	0.0
Congregational Holiness Church	Evangelical Protestant	Pentecostal	254	15,193	0.0
Congregational Methodist Church	Evangelical Protestant	Methodist/Pietist	153	14,837	0.0
Conservative Baptist Association of America	Evangelical Protestant	Baptist	1,141	---	---
Conservative Congregational Christian Conference	Evangelical Protestant	Presbyterian-Reformed	297	50,707	0.2
Conservative Judaism	Other	Judaism	592	501,776	1.6
Conservative Lutheran Association	Evangelical Protestant	Lutheran	4	---	---
Conservative Mennonite Conference	Evangelical Protestant	European Free-Church	105	14,284	0.0
Conservative Yearly Meetings of Friends*	Evangelical Protestant	European Free-Church	40	1,976	0.0
Convention of Original Free Will Baptists	Evangelical Protestant	Baptist	244	36,823	0.1
Converge Worldwide/Baptist General Conference	Evangelical Protestant	Baptist	1,092	260,100	0.8
Coptic Orthodox Church	Orthodox	Eastern Liturgical (Orthodox)	174	92,191	0.3
Covenant Reformed Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	3	---	---
Cumberland Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	660	66,960	0.2
Cumberland Presbyterian Church in America	Black Protestant	Presbyterian-Reformed	107	---	---
Elim Fellowship	Evangelical Protestant	Pentecostal	103	---	---
Enterprise Baptists Association	Evangelical Protestant	Baptist	55	---	---
Episcopal Church	Mainline Protestant	Episcopalianism/Anglicanism	6,794	1,951,907	6.3
Eritrean Orthodox	Orthodox	Eastern Liturgical (Orthodox)	39	12,685	0.0
Ethiopian Orthodox	Orthodox	Eastern Liturgical (Orthodox)	58	---	---
Evangelical Association of Reformed, and Congregational Christian Churches	Evangelical Protestant	Presbyterian-Reformed	67	---	---
Evangelical Church, The	Evangelical Protestant	Holiness	128	---	---
Evangelical Congregational Church, The	Evangelical Protestant	Methodist/Pietist	132	20,592	0.1
Evangelical Covenant Church, The	Evangelical Protestant	Methodist/Pietist	816	228,365	0.7
Evangelical Free Church of America, The	Evangelical Protestant	Methodist/Pietist	1,470	357,186	1.2
Evangelical Friends Church International*	Evangelical Protestant	European Free-Church	306	34,565	0.1
Evangelical Lutheran Church in America	Mainline Protestant	Lutheran	9,846	4,181,219	13.5
Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	129	19,291	0.1
Evangelical Methodist Church	Evangelical Protestant	Methodist/Pietist	97	---	---
Evangelical Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	291	129,636	0.4
Federation of Reformed Churches	Evangelical Protestant	Presbyterian-Reformed	7	---	---
Fellowship of Evangelical Bible Churches	Evangelical Protestant	European Free-Church	19	2,121	0.0
Fellowship of Evangelical Churches	Evangelical Protestant	European Free-Church	46	9,193	0.0
Foursquare Gospel, International Church of the	Evangelical Protestant	Pentecostal	1,823	321,763	1.0
Free Church of Scotland (Continuing)	Evangelical Protestant	Presbyterian-Reformed	5	---	---
Free Methodist Church of North America	Evangelical Protestant	Holiness	950	107,271	0.3
Free Presbyterian Church of North America	Evangelical Protestant	Presbyterian-Reformed	14	---	---
Free Reformed Church of North America	Evangelical Protestant	Presbyterian-Reformed	2	---	---
Friends General Conference and Friends United Meeting, dually aligned meetings*	Mainline Protestant	European Free-Church	240	15,436	0.0
Friends General Conference*	Mainline Protestant	European Free-Church	382	22,192	0.1
Friends United Meeting*	Mainline Protestant	European Free-Church	258	24,826	0.1
Full Gospel Baptist Church Fellowship	Black Protestant	Baptist	699	---	---
Fundamental Baptist Fellowship	Evangelical Protestant	Baptist	24	---	---
General Association of Regular Baptist Churches	Evangelical Protestant	Baptist	1,285	---	---
Georgian Orthodox Parishes in the United States	Orthodox	Eastern Liturgical (Orthodox)	7	920	0.0
Grace Brethren Churches, Fellowship of	Mainline Protestant	European Free-Church	266	---	---
Grace Gospel Fellowship	Evangelical Protestant	Ind. Fundamentalist	120	---	---
Greek Orthodox Archdiocese of America	Orthodox	Eastern Liturgical (Orthodox)	545	476,878	1.5
Heritage Reformed Churches	Evangelical Protestant	Presbyterian-Reformed	5	804	0.0
Hindu, Indian-American Hindu Temple Assoc.	Other	Other Groups	399	304,150	1.0
Hindu, Post Renaissance	Other	Other Groups	820	36,720	0.1
Hindu, Renaissance	Other	Other Groups	150	24,202	0.1
Hindu, Traditional Temples	Other	Other Groups	256	276,114	0.9
Holy Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	34	2,212	0.0
Hungarian Reformed Churches (Additional)	Mainline Protestant	Presbyterian-Reformed	29	---	---
Hutterian Brethren	Evangelical Protestant	Communal	135	---	---
Independent Baptist Fellowship International	Evangelical Protestant	Baptist	588	---	---
Independent Fundamental Churches of America	Evangelical Protestant	Ind. Fundamentalist	601	---	---
Independent Yearly Meetings of Friends*	Mainline Protestant	European Free-Church	95	2,850	0.0
International Churches of Christ	Evangelical Protestant	Baptist	126	42,106	0.1
International Council of Community Churches	Mainline Protestant	Presbyterian-Reformed	157	---	---
International Fellowship of Bible Churches	Evangelical Protestant	----	27	---	---
International Fellowship of Christian Assemblies	Evangelical Protestant	----	80	---	---
International Pentecostal Church of Christ	Evangelical Protestant	Pentecostal	62	3,756	0.0
International Pentecostal Holiness Church	Evangelical Protestant	Pentecostal	1,995	289,475	0.9
Jain	Other	Other Groups	71	---	---
Jehovah's Witnesses	Other	Adventist	5,769	---	---
Korean Presbyterian Church Abroad	Evangelical Protestant	Presbyterian-Reformed	193	---	---
Korean Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	387	---	---
Korean-American Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	210	---	---
Lutheran Church--Missouri Synod	Evangelical Protestant	Lutheran	6,040	2,270,921	7.4
Lutheran Congregations in Mission for Christ	Evangelical Protestant	Lutheran	673	310,185	1.0
Macedonian Orthodox Church: American Diocese	Orthodox	Eastern Liturgical (Orthodox)	20	15,513	0.1
Malankara Archdiocese of the Syrian Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	41	6,426	0.0
Malankara Orthodox Syrian Church	Orthodox	Eastern Liturgical (Orthodox)	92	16,952	0.1
Maranatha Amish Mennonite*	Evangelical Protestant	European Free-Church	12	1,548	0.0
Mennonite Christian Fellowship*	Evangelical Protestant	European Free-Church	24	2,629	0.0
Mennonite Church USA	Evangelical Protestant	European Free-Church	919	127,363	0.4
Metropolitan Community Churches, Universal Fellowship of	Mainline Protestant	Other Groups	150	17,600	0.1
Midwest Beachy Amish Mennonite*	Evangelical Protestant	European Free-Church	6	747	0.0
Midwest Congregational Christian Fellowship	Evangelical Protestant	Presbyterian-Reformed	25	1,213	0.0
Missionary Church, The	Evangelical Protestant	Holiness	423	63,775	0.2
Moravian Church in America--Alaska Province	Mainline Protestant	Methodist/Pietist	23	2,649	0.0
Moravian Church in America--Northern Province	Mainline Protestant	Methodist/Pietist	84	20,286	0.1
Moravian Church in America--Southern Province	Mainline Protestant	Methodist/Pietist	56	15,737	0.1
Muslim Estimate	Other	Other Groups	2,106	2,600,082	8.4
National Association of Congregational Christian Churches	Mainline Protestant	Presbyterian-Reformed	400	66,749	0.2
National Association of Free Will Baptists	Evangelical Protestant	Baptist	2,285	217,560	0.7
National Baptist Convention of America, Inc.	Black Protestant	Baptist	575	304,414	1.0
National Baptist Convention, USA, Inc.	Black Protestant	Baptist	3,536	1,881,341	6.1
National Missionary Baptist Convention, Inc.	Black Protestant	Baptist	1,283	261,873	0.8
National Spiritualist Association of Churches	Other	Spiritualist	84	---	---
New Apostolic Church of North America, National Organization of the	Other	Other Groups	296	---	---
New Testament Association of Independent Baptist Churches	Evangelical Protestant	Baptist	120	---	---
Non-denominational	Evangelical Protestant	----	35,496	12,241,329	39.6
North American Baptist Conference	Evangelical Protestant	Baptist	285	57,219	0.2
North American Lutheran Church	Evangelical Protestant	Lutheran	305	---	---
Old Order River Brethren	Evangelical Protestant	European Free-Church	6	619	0.0
Open Bible Standard Churches, Inc.	Evangelical Protestant	Pentecostal	261	22,659	0.1
Orthodox Church in America	Orthodox	Eastern Liturgical (Orthodox)	571	84,928	0.3
Orthodox Judaism	Other	Judaism	1,932	947,020	3.1
Orthodox Presbyterian Church, The	Evangelical Protestant	Presbyterian-Reformed	319	28,559	0.1
Patriarchal Parishes of the Russian Orthodox Church in the USA	Orthodox	Eastern Liturgical (Orthodox)	32	12,377	0.0
Pentecostal Church of God	Evangelical Protestant	Pentecostal	1,101	125,030	0.4
Pentecostal Fire-Baptized Holiness Church	Evangelical Protestant	Pentecostal	216	---	---
Pentecostal Free Will Baptist Church, Inc.	Evangelical Protestant	Pentecostal	148	---	---
Pillar of Fire	Evangelical Protestant	Holiness	6	2,100	0.0
Polish National Catholic Church	Catholic	Catholicism	119	---	---
Presbyterian Church (U.S.A.)	Mainline Protestant	Presbyterian-Reformed	10,487	2,451,980	7.9
Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	1,730	341,431	1.1
Presbyterian Reformed Church	Evangelical Protestant	Presbyterian-Reformed	4	---	---
Primitive Baptists, Eastern District Association of	Evangelical Protestant	Baptist	57	6,046	0.0
Primitive Methodist Church in the USA	Evangelical Protestant	Methodist/Pietist	67	---	---
Progressive National Baptist Convention, Inc.	Black Protestant	Baptist	390	203,732	0.7
Protestant Reformed Churches in America	Evangelical Protestant	Presbyterian-Reformed	28	7,323	0.0
Reconstructionist Judaism	Other	Judaism	95	41,436	0.1
Reform Judaism	Other	Judaism	845	766,352	2.5
Reformed Baptist Churches	Evangelical Protestant	Baptist	353	---	---
Reformed Church in America	Mainline Protestant	Presbyterian-Reformed	864	295,120	1.0
Reformed Church in the United States	Evangelical Protestant	Presbyterian-Reformed	43	3,923	0.0
Reformed Mennonite Church	Evangelical Protestant	European Free-Church	9	275	0.0
Reformed Presbyterian Church General Assembly	Evangelical Protestant	Presbyterian-Reformed	9	---	---
Reformed Presbyterian Church Hanover Presbytery	Evangelical Protestant	Presbyterian-Reformed	8	---	---
Reformed Presbyterian Church in the United States	Evangelical Protestant	Presbyterian-Reformed	9	---	---
Reformed Presbyterian Church of North America	Evangelical Protestant	Presbyterian-Reformed	77	5,983	0.0
Romanian Orthodox Archdiocese in Americas	Orthodox	Eastern Liturgical (Orthodox)	32	11,203	0.0
Russian Orthodox Church Outside of Russia	Orthodox	Eastern Liturgical (Orthodox)	146	27,677	0.1
Salvation Army	Evangelical Protestant	Holiness	1,234	379,031	1.2
Schwenkfelder Church	Evangelical Protestant	European Free-Church	4	2,695	0.0
Serbian Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	135	68,760	0.2
Seventh Day Baptist General Conference, USA and Canada	Evangelical Protestant	Baptist	96	5,168	0.0
Seventh-day Adventist Church	Evangelical Protestant	Adventist	5,665	1,194,996	3.9
Shinto	Other	Other Groups	5	---	---
Sikh	Other	Other Groups	246	---	---
Southern Baptist Convention	Evangelical Protestant	Baptist	50,816	19,896,975	64.4
Southern Methodist Church	Evangelical Protestant	Methodist/Pietist	100	---	---
Swedenborgian Church	Other	Spiritualist	34	---	---
Syriac Orthodox Church of Antioch	Orthodox	Eastern Liturgical (Orthodox)	32	15,705	0.1
Tampico Amish Mennonite*	Evangelical Protestant	European Free-Church	16	3,342	0.0
Tao	Other	Other Groups	43	---	---
U.S. Mennonite Brethren	Evangelical Protestant	European Free-Church	190	41,928	0.1
Ukrainian Orthodox Church of the USA	Orthodox	Eastern Liturgical (Orthodox)	101	22,362	0.1
Unaffiliated Conservative Amish Mennonite Church*	Evangelical Protestant	European Free-Church	33	3,224	0.0
Unaffiliated Friends Meetings*	Mainline Protestant	European Free-Church	26	---	---
Union of Messianic Jewish Congregations	Other	Judaism	65	---	---
Unitarian Universalist Association of Congregations	Other	Liberal	1,022	211,606	0.7
United Catholic Church, Inc.	Catholic	Catholicism	10	7,019	0.0
United Church of Christ	Mainline Protestant	Presbyterian-Reformed	5,225	1,284,296	4.2
United Holy Church of America, Inc.	Black Protestant	Pentecostal	369	---	---
United Methodist Church, The	Mainline Protestant	Methodist/Pietist	33,323	9,948,221	32.2
United Pentecostal Church International	Evangelical Protestant	Pentecostal	4,062	---	---
United Pentecostal Council of the Assemblies of God	Evangelical Protestant	Pentecostal	25	---	---
United Reformed Churches in North America	Evangelical Protestant	Presbyterian-Reformed	74	---	---
United Zion Church	Evangelical Protestant	European Free-Church	12	721	0.0
Unity Churches, Association of	Other	Other Groups	594	---	---
Unity of the Brethren	Evangelical Protestant	Methodist/Pietist	27	---	---
Vicariate for the Palestinian/Jordanian Orthodox Christian Communities	Orthodox	Eastern Liturgical (Orthodox)	9	6,775	0.0
Vineyard USA	Evangelical Protestant	Pentecostal	552	220,941	0.7
Wesleyan Church, The	Evangelical Protestant	Holiness	1,614	250,051	0.8
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	1,269	382,883	1.2
Zoroastrian	Other	Other Groups	33	6,558	0.0
		Totals:	344,894	150,686,156

The population of the United States was 308,745,538 in 2010; in 2000 it was 281,421,839. The total population changed 9.7%. The adherent totals of the religious groups listed above (150,686,156) included 48.8% 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 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.

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