State Membership Report
 Maps and Reports > Select State > State Report
Search Maps & Reports:

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 317 526,546 108.2
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 371 150,634 31.0
Evangelical Lutheran Church in America Mainline Protestant Lutheran 280 132,528 27.2
United Methodist Church, The Mainline Protestant Methodist/Pietist 252 89,499 18.4
Assemblies of God Evangelical Protestant Pentecostal 351 84,765 17.4
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 218 72,273 14.9
Southern Baptist Convention Evangelical Protestant Baptist 188 60,307 12.4
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 133 44,246 9.1
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 115 41,916 8.6
Seventh-day Adventist Church Evangelical Protestant Adventist 150 39,667 8.2
Black Baptists Estimate Evangelical Protestant Baptist --- 39,186 8.1
American Baptist Churches in the USA Mainline Protestant Baptist 137 36,230 7.4
Jewish Other Judaism 19 33,689 6.9
Independent, Charismatic Churches Evangelical Protestant Pentecostal 35 28,315 5.8
Church of the Nazarene Evangelical Protestant Holiness 135 28,164 5.8
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 96 22,353 4.6
Christian Churches and Churches of Christ Evangelical Protestant Baptist 66 18,569 3.8
United Church of Christ Mainline Protestant Presbyterian-Reformed 92 18,181 3.7
Churches of Christ Evangelical Protestant Baptist 129 14,860 3.1
Christian Church (Disciples of Christ) Mainline Protestant Baptist 72 14,787 3.0
Christian and Missionary Alliance, The Evangelical Protestant Holiness 64 13,447 2.8
Independent, Non-Charismatic Churches Evangelical Protestant
----
19 11,730 2.4
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 41 11,467 2.4
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 37 10,110 2.1
Free Methodist Church of North America Evangelical Protestant Holiness 59 7,994 1.6
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 46 5,984 1.2
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 41 5,262 1.1
Unitarian Universalist Association of Congregations Other Liberal 25 4,997 1.0
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 34 4,073 0.8
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 26 3,871 0.8
Reformed Church in America Mainline Protestant Presbyterian-Reformed 9 3,663 0.8
Christian Brethren Evangelical Protestant Ind. Fundamentalist 28 2,753 0.6
Pentecostal Church of God Evangelical Protestant Pentecostal 36 2,705 0.6
Salvation Army Evangelical Protestant Holiness 22 2,698 0.6
North American Baptist Conference Evangelical Protestant Baptist 15 2,598 0.5
Friends (Quakers) Mainline Protestant European Free-Church 33 1,911 0.4
Church of the Brethren Evangelical Protestant European Free-Church 13 1,909 0.4
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran 13 1,837 0.4
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 12 1,807 0.4
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 5 1,421 0.3
Evangelical Lutheran Synod Evangelical Protestant Lutheran 5 1,288 0.3
Association of Free Lutheran Congregations Evangelical Protestant Lutheran 8 1,014 0.2
Church of God of Prophecy Evangelical Protestant Pentecostal 27 921 0.2
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 17 902 0.2
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 3 770 0.2
Church of the Lutheran Confession Evangelical Protestant Lutheran 4 769 0.2
Mennonite Church USA Evangelical Protestant European Free-Church 7 756 0.2
Apostolic Lutheran Church of America Evangelical Protestant Lutheran 5 753 0.2
Latvian Evangelical Lutheran Church in America Mainline Protestant Lutheran 3 729 0.1
Wesleyan Church, The Evangelical Protestant Holiness 10 671 0.1
Advent Christian Church Evangelical Protestant Adventist 5 647 0.1
Evangelical Presbyterian Church Evangelical Protestant Presbyterian-Reformed 3 640 0.1
National Association of Free Will Baptists Evangelical Protestant Baptist 6 510 0.1
U.S. Mennonite Brethren Evangelical Protestant European Free-Church 4 389 0.1
Evangelical Methodist Church Evangelical Protestant Methodist/Pietist 5 315 0.1
Missionary Church, The Evangelical Protestant Holiness 8 314 0.1
Baptist Missionary Association of America Evangelical Protestant Baptist 4 291 0.1
Netherlands Reformed Congregations Evangelical Protestant Presbyterian-Reformed 2 290 0.1
Hutterian Brethren Evangelical Protestant Communal 4 280 0.1
Church of God General Conference Evangelical Protestant Adventist 3 261 0.1
Church of God (Seventh Day) Evangelical Protestant Adventist 3 203 0.0
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox Eastern Liturgical (Orthodox) 1 184 0.0
Seventh Day Baptist General Conference, USA and Canada Evangelical Protestant Baptist 3 98 0.0
Old Regular Baptists Evangelical Protestant Baptist 2 92 0.0
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 2 87 0.0
Estonian Evangelical Lutheran Church Mainline Protestant Lutheran 1 87 0.0
American Association of Lutheran Churches Evangelical Protestant Lutheran 1 68 0.0
Church of the United Brethren in Christ Evangelical Protestant Methodist/Pietist 2 68 0.0
Church of God in Christ, Mennonite Evangelical Protestant European Free-Church 1 61 0.0
Apostolic Christian Churches (Nazarene) Evangelical Protestant European Free-Church 1 43 0.0
Reformed Episcopal Church Evangelical Protestant Episcopalianism/Anglicanism 1 31 0.0
Primitive Baptists Associations Evangelical Protestant Baptist 1 20 0.0
Fire Baptized Holiness Church, (Wesleyan), The Evangelical Protestant Holiness 1 12 0.0
Associate Reformed Presbyterian Church Evangelical Protestant Presbyterian-Reformed --- --- ---
Church of Christ, Scientist Other Christian Science 73 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 67 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 6 --- ---
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 30 --- ---
Old Order Amish Evangelical Protestant European Free-Church --- --- ---
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 26 --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 3 --- ---
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox Eastern Liturgical (Orthodox) --- --- ---
Totals: 4,092 1,612,516  

The population of Washington was 4,866,692 in 1990; in 1980 it was 4,132,156. The total population changed 17.8%. The adherent totals of the religious groups listed above (1,612,516) included 33.1% of the total population in 1990.

* 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.