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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 299 380,023 92.0
Evangelical Lutheran Church in America Mainline Protestant Lutheran 267 130,918 31.7
Assemblies of God Evangelical Protestant Pentecostal 256 59,591 14.4
United Methodist Church, The Mainline Protestant Methodist/Pietist 253 98,114 23.7
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 238 105,073 25.4
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 207 71,838 17.4
Southern Baptist Convention Evangelical Protestant Baptist 147 45,306 11.0
Seventh-day Adventist Church Evangelical Protestant Adventist 138 31,086 7.5
American Baptist Churches in the USA Mainline Protestant Baptist 131 37,893 9.2
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 126 51,354 12.4
Church of the Nazarene Evangelical Protestant Holiness 125 25,062 6.1
Churches of Christ Evangelical Protestant Baptist 107 13,314 3.2
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 107 44,126 10.7
United Church of Christ Mainline Protestant Presbyterian-Reformed 95 20,172 4.9
Christian Church (Disciples of Christ) Mainline Protestant Baptist 80 21,130 5.1
Christian Churches and Churches of Christ Evangelical Protestant Baptist 65 13,144 3.2
Conservative Baptist Association of America Evangelical Protestant Baptist 60 11,519 2.8
Free Methodist Church of North America Evangelical Protestant Holiness 55 15,405 3.7
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 48 14,622 3.5
Christian and Missionary Alliance, The Evangelical Protestant Holiness 46 6,650 1.6
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 40 2,386 0.6
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 39 9,214 2.2
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 32 5,417 1.3
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 31 8,711 2.1
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 29 3,284 0.8
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 28 2,155 0.5
Christian Brethren Evangelical Protestant Ind. Fundamentalist 26 1,855 0.4
Unitarian Universalist Association of Congregations Other Liberal 23 2,690 0.7
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 23 3,214 0.8
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 21 4,250 1.0
Salvation Army Evangelical Protestant Holiness 20 5,205 1.3
Friends (Quakers) Mainline Protestant European Free-Church 18 2,291 0.6
Evangelical Church, The Evangelical Protestant Holiness 16 1,655 0.4
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran 13 2,213 0.5
American Baptist Association, The Evangelical Protestant Baptist 12 521 0.1
Church of the Brethren Evangelical Protestant European Free-Church 12 2,197 0.5
North American Baptist Conference Evangelical Protestant Baptist 12 2,074 0.5
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 11 1,601 0.4
Grace Brethren Churches, Fellowship of Mainline Protestant European Free-Church 10 1,309 0.3
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 10 664 0.2
Reformed Church in America Mainline Protestant Presbyterian-Reformed 8 3,320 0.8
Baptist Missionary Association of America Evangelical Protestant Baptist 7 334 0.1
Jewish Other Judaism 7 5,829 1.4
Missionary Church, The Evangelical Protestant Holiness 7 351 0.1
Advent Christian Church Evangelical Protestant Adventist 6 757 0.2
Association of Free Lutheran Congregations Evangelical Protestant Lutheran 6 843 0.2
Evangelical Methodist Church Evangelical Protestant Methodist/Pietist 6 336 0.1
Apostolic Lutheran Church of America Evangelical Protestant Lutheran 5 1,211 0.3
Christian Methodist Episcopal Church Black Protestant Methodist/Pietist 5 1,442 0.3
Church of God (Seventh Day) Evangelical Protestant Adventist 5 127 0.0
Evangelical Lutheran Synod Evangelical Protestant Lutheran 5 1,064 0.3
Mennonite Church, The General Conference Evangelical Protestant European Free-Church 5 595 0.1
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 5 1,218 0.3
Church of the Lutheran Confession Evangelical Protestant Lutheran 4 733 0.2
U.S. Mennonite Brethren Evangelical Protestant European Free-Church 4 396 0.1
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 3 770 0.2
Latvian Evangelical Lutheran Church in America Mainline Protestant Lutheran 3 825 0.2
Church of God General Conference Evangelical Protestant Adventist 2 161 0.0
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 2 410 0.1
Apostolic Christian Churches (Nazarene) Evangelical Protestant European Free-Church 1 43 0.0
Estonian Evangelical Lutheran Church Mainline Protestant Lutheran 1 250 0.1
Fire Baptized Holiness Church, (Wesleyan), The Evangelical Protestant Holiness 1 11 0.0
General Church of the New Jerusalem Other Spiritualist 1 71 0.0
Mennonite Church Evangelical Protestant European Free-Church 1 81 0.0
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 1 56 0.0
Protestant Reformed Churches in America Evangelical Protestant Presbyterian-Reformed 1 190 0.0
Reformed Presbyterian Church of North America Evangelical Protestant Presbyterian-Reformed 1 94 0.0
Seventh Day Baptist General Conference, USA and Canada Evangelical Protestant Baptist 1 83 0.0
Swedenborgian Church Other Spiritualist 1 71 0.0
Church of God in Christ, Mennonite Evangelical Protestant European Free-Church --- --- ---
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed --- --- ---
Totals: 3,381 1,280,918  

The population of Washington was 4,132,156 in 1980. The adherent totals of the religious groups listed above (1,280,918) included 31.0% of the total population in 1980.

* 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.