Washington

Religious Traditions, 2010

820,643	14,289	308,292	16,987	784,332	383,462	4,396,535
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^†
Catholic Church	Catholic	Catholicism	312	784,332	116.6
Non-denominational	Evangelical Protestant	----	743	309,440	46.0
Church of Jesus Christ of Latter-day Saints, The	Other	Latter-day Saints	520	267,267	39.7
Assemblies of God	Evangelical Protestant	Pentecostal	342	125,005	18.6
Evangelical Lutheran Church in America	Mainline Protestant	Lutheran	259	96,555	14.4
United Methodist Church, The	Mainline Protestant	Methodist/Pietist	244	66,616	9.9
Presbyterian Church (U.S.A.)	Mainline Protestant	Presbyterian-Reformed	217	61,502	9.1
Seventh-day Adventist Church	Evangelical Protestant	Adventist	206	52,944	7.9
Southern Baptist Convention	Evangelical Protestant	Baptist	280	51,665	7.7
Foursquare Gospel, International Church of the	Evangelical Protestant	Pentecostal	160	38,874	5.8
Church of the Nazarene	Evangelical Protestant	Holiness	154	36,477	5.4
Episcopal Church	Mainline Protestant	Episcopalianism/Anglicanism	127	33,410	5.0
Lutheran Church--Missouri Synod	Evangelical Protestant	Lutheran	117	32,807	4.9
Buddhism, Mahayana	Other	Other Groups	70	31,254	4.6
American Baptist Churches in the USA	Mainline Protestant	Baptist	119	26,638	4.0
Christian Churches and Churches of Christ	Evangelical Protestant	Baptist	62	21,011	3.1
Muslim Estimate	Other	Other Groups	36	19,092	2.8
Christian and Missionary Alliance, The	Evangelical Protestant	Holiness	85	18,843	2.8
Buddhism, Theravada	Other	Other Groups	18	14,711	2.2
Converge Worldwide/Baptist General Conference	Evangelical Protestant	Baptist	62	14,190	2.1
Churches of Christ	Evangelical Protestant	Baptist	133	13,233	2.0
Evangelical Covenant Church, The	Evangelical Protestant	Methodist/Pietist	50	12,023	1.8
Reform Judaism	Other	Judaism	17	11,950	1.8
United Church of Christ	Mainline Protestant	Presbyterian-Reformed	77	11,735	1.7
Free Methodist Church of North America	Evangelical Protestant	Holiness	49	10,057	1.5
Christian Reformed Church in North America	Evangelical Protestant	Presbyterian-Reformed	52	9,497	1.4
U.S. Mennonite Brethren	Evangelical Protestant	European Free-Church	22	8,819	1.3
Lutheran Congregations in Mission for Christ	Evangelical Protestant	Lutheran	22	8,790	1.3
Christian Church (Disciples of Christ)	Mainline Protestant	Baptist	53	7,697	1.1
Unitarian Universalist Association of Congregations	Other	Liberal	28	7,488	1.1
Salvation Army	Evangelical Protestant	Holiness	24	7,390	1.1
Church of God (Anderson, Indiana)	Evangelical Protestant	Holiness	47	7,228	1.1
Bahá'í	Other	Other Groups	82	7,087	1.1
Church of God in Christ	Black Protestant	Pentecostal	30	6,838	1.0
Greek Orthodox Archdiocese of America	Orthodox	Eastern Liturgical (Orthodox)	8	6,017	0.9
Evangelical Free Church of America, The	Evangelical Protestant	Methodist/Pietist	41	5,342	0.8
Hindu, Traditional Temples	Other	Other Groups	2	5,150	0.8
Church of God (Cleveland, Tennessee)	Evangelical Protestant	Pentecostal	38	4,859	0.7
Community of Christ	Other	Latter-day Saints	26	4,147	0.6
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	25	3,887	0.6
Conservative Judaism	Other	Judaism	5	3,856	0.6
Hindu, Indian-American Hindu Temple Assoc.	Other	Other Groups	8	3,263	0.5
Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	24	3,149	0.5
Open Bible Standard Churches, Inc.	Evangelical Protestant	Pentecostal	23	3,118	0.5
Buddhism, Vajrayana	Other	Other Groups	30	3,100	0.5
African Methodist Episcopal Church	Black Protestant	Methodist/Pietist	9	2,969	0.4
Orthodox Judaism	Other	Judaism	14	2,960	0.4
Reformed Church in America	Mainline Protestant	Presbyterian-Reformed	9	2,735	0.4
Vineyard USA	Evangelical Protestant	Pentecostal	14	2,696	0.4
Armenian Church of North America (Catholicosate of Etchmiadzin)	Orthodox	Eastern Liturgical (Orthodox)	1	2,500	0.4
National Baptist Convention, USA, Inc.	Black Protestant	Baptist	5	2,151	0.3
North American Baptist Conference	Evangelical Protestant	Baptist	18	2,132	0.3
Pentecostal Church of God	Evangelical Protestant	Pentecostal	18	1,959	0.3
Church of the Lutheran Brethren of America	Evangelical Protestant	Lutheran	12	1,858	0.3
Evangelical Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	4	1,767	0.3
Coptic Orthodox Church	Orthodox	Eastern Liturgical (Orthodox)	3	1,735	0.3
Serbian Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	1	1,500	0.2
Orthodox Church in America	Orthodox	Eastern Liturgical (Orthodox)	9	1,496	0.2
Eritrean Orthodox	Orthodox	Eastern Liturgical (Orthodox)	3	1,400	0.2
Evangelical Friends Church International*	Evangelical Protestant	European Free-Church	18	1,348	0.2
Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	5	1,347	0.2
American Baptist Association, The	Evangelical Protestant	Baptist	13	1,317	0.2
Antiochian Orthodox Christian Archdiocese of North America, The	Orthodox	Eastern Liturgical (Orthodox)	8	1,232	0.2
International Pentecostal Holiness Church	Evangelical Protestant	Pentecostal	20	1,183	0.2
Church of God of Prophecy	Evangelical Protestant	Pentecostal	21	1,121	0.2
International Churches of Christ	Evangelical Protestant	Baptist	4	998	0.1
Christian Methodist Episcopal Church	Black Protestant	Methodist/Pietist	6	944	0.1
Orthodox Presbyterian Church, The	Evangelical Protestant	Presbyterian-Reformed	10	933	0.1
Hindu, Post Renaissance	Other	Other Groups	25	903	0.1
Church of the Brethren	Evangelical Protestant	European Free-Church	12	854	0.1
National Missionary Baptist Convention, Inc.	Black Protestant	Baptist	4	713	0.1
Reconstructionist Judaism	Other	Judaism	2	685	0.1
Independent Yearly Meetings of Friends*	Mainline Protestant	European Free-Church	23	560	0.1
Mennonite Church USA	Evangelical Protestant	European Free-Church	6	550	0.1
National Association of Congregational Christian Churches	Mainline Protestant	Presbyterian-Reformed	5	537	0.1
Russian Orthodox Church Outside of Russia	Orthodox	Eastern Liturgical (Orthodox)	3	525	0.1
Hindu, Renaissance	Other	Other Groups	7	520	0.1
African Methodist Episcopal Zion Church	Black Protestant	Methodist/Pietist	4	501	0.1
Wesleyan Church, The	Evangelical Protestant	Holiness	6	470	0.1
Missionary Church, The	Evangelical Protestant	Holiness	8	268	0.0
Apostolic Faith Mission of Portland, OR	Evangelical Protestant	Pentecostal	6	254	0.0
Church of God in Christ, Mennonite	Evangelical Protestant	European Free-Church	2	236	0.0
Metropolitan Community Churches, Universal Fellowship of	Mainline Protestant	Other Groups	6	233	0.0
National Baptist Convention of America, Inc.	Black Protestant	Baptist	1	173	0.0
Holy Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	3	160	0.0
Conservative Congregational Christian Conference	Evangelical Protestant	Presbyterian-Reformed	4	151	0.0
Ukrainian Orthodox Church of the USA	Orthodox	Eastern Liturgical (Orthodox)	1	150	0.0
Vicariate for the Palestinian/Jordanian Orthodox Christian Communities	Orthodox	Eastern Liturgical (Orthodox)	1	125	0.0
Protestant Reformed Churches in America	Evangelical Protestant	Presbyterian-Reformed	2	117	0.0
Seventh Day Baptist General Conference, USA and Canada	Evangelical Protestant	Baptist	2	103	0.0
Church of God General Conference	Evangelical Protestant	Adventist	2	101	0.0
National Association of Free Will Baptists	Evangelical Protestant	Baptist	2	101	0.0
Reformed Presbyterian Church of North America	Evangelical Protestant	Presbyterian-Reformed	1	83	0.0
Malankara Orthodox Syrian Church	Orthodox	Eastern Liturgical (Orthodox)	1	75	0.0
Friends General Conference *	Mainline Protestant	European Free-Church	1	74	0.0
Malankara Archdiocese of the Syrian Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	1	72	0.0
Church of the United Brethren in Christ	Evangelical Protestant	Methodist/Pietist	1	48	0.0
Zoroastrian	Other	Other Groups	1	29	0.0
American Association of Lutheran Churches	Evangelical Protestant	Lutheran	2	---	---
Anglican Church in North America	Evangelical Protestant	Episcopalianism/Anglicanism	24	---	---
Apostolic Lutheran Church of America	Evangelical Protestant	Lutheran	7	---	---
Association of Free Lutheran Congregations	Evangelical Protestant	Lutheran	7	---	---
Association of Reformed Baptist Churches of America	Evangelical Protestant	Baptist	2	---	---
Bible Presbyterian Church (General Synod)	Evangelical Protestant	Presbyterian-Reformed	3	---	---
Calvary Chapel Fellowship Churches	Evangelical Protestant	Pentecostal	57	---	---
Canadian and American Reformed Churches	Evangelical Protestant	Presbyterian-Reformed	1	---	---
Christian Brethren	Evangelical Protestant	Ind. Fundamentalist	3	---	---
Church of Christ, Scientist	Other	Christian Science	44	---	---
Church of God (Seventh Day)	Evangelical Protestant	Adventist	3	---	---
Church of God by Faith, Inc.	Evangelical Protestant	Pentecostal	4	---	---
Church of the Lutheran Confession	Evangelical Protestant	Lutheran	5	---	---
Communion of Reformed Evangelical Churches	Evangelical Protestant	Presbyterian-Reformed	6	---	---
Conservative Baptist Association of America	Evangelical Protestant	Baptist	64	---	---
Conservative Lutheran Association	Evangelical Protestant	Lutheran	1	---	---
Ethiopian Orthodox	Orthodox	Eastern Liturgical (Orthodox)	2	---	---
Evangelical Church, The	Evangelical Protestant	Holiness	14	---	---
Evangelical Methodist Church	Evangelical Protestant	Methodist/Pietist	4	---	---
General Association of Regular Baptist Churches	Evangelical Protestant	Baptist	54	---	---
Grace Brethren Churches, Fellowship of	Mainline Protestant	European Free-Church	11	---	---
Grace Gospel Fellowship	Evangelical Protestant	Ind. Fundamentalist	5	---	---
Hutterian Brethren	Evangelical Protestant	Communal	5	---	---
Independent Baptist Fellowship International	Evangelical Protestant	Baptist	8	---	---
Independent Fundamental Churches of America	Evangelical Protestant	Ind. Fundamentalist	38	---	---
International Council of Community Churches	Mainline Protestant	Presbyterian-Reformed	1	---	---
International Fellowship of Bible Churches	Evangelical Protestant	----	1	---	---
Jehovah's Witnesses	Other	Adventist	166	---	---
Korean Presbyterian Church Abroad	Evangelical Protestant	Presbyterian-Reformed	10	---	---
Korean Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	19	---	---
Korean-American Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	9	---	---
National Spiritualist Association of Churches	Other	Spiritualist	3	---	---
New Apostolic Church of North America, National Organization of the	Other	Other Groups	5	---	---
North American Lutheran Church	Evangelical Protestant	Lutheran	2	---	---
Polish National Catholic Church	Catholic	Catholicism	1	---	---
Reformed Baptist Churches	Evangelical Protestant	Baptist	10	---	---
Reformed Presbyterian Church Hanover Presbytery	Evangelical Protestant	Presbyterian-Reformed	1	---	---
Shinto	Other	Other Groups	1	---	---
Sikh	Other	Other Groups	6	---	---
Swedenborgian Church	Other	Spiritualist	1	---	---
Tao	Other	Other Groups	2	---	---
Union of Messianic Jewish Congregations	Other	Judaism	2	---	---
United Pentecostal Church International	Evangelical Protestant	Pentecostal	55	---	---
United Reformed Churches in North America	Evangelical Protestant	Presbyterian-Reformed	5	---	---
Unity Churches, Association of	Other	Other Groups	23	---	---
		Totals:	6,114	2,328,005

The population of Washington was 6,724,540 in 2010; in 2000 it was 5,894,121. The total population changed 14.1%. The adherent totals of the religious groups listed above (2,328,005) included 34.6% 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.