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Washington

Religious Traditions, 2010

820,643 14,289 308,292 784,332 16,987 383,462 4,396,535
Evangelical Protestant Black Protestant Mainline Protestant Catholic Orthodox 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
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 471 178,000 30.20
Assemblies of God Evangelical Protestant Pentecostal 347 105,692 17.93
Catholic Church Catholic Catholicism 312 716,133 121.50
Evangelical Lutheran Church in America Mainline Protestant Lutheran 279 127,854 21.69
United Methodist Church, The Mainline Protestant Methodist/Pietist 258 76,648 13.00
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 224 74,388 12.62
Southern Baptist Convention Evangelical Protestant Baptist 220 62,309 10.57
Seventh-day Adventist Church Evangelical Protestant Adventist 189 43,222 7.33
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 150 33,434 5.67
Church of the Nazarene Evangelical Protestant Holiness 141 37,085 6.29
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 136 41,731 7.08
Churches of Christ Evangelical Protestant Baptist 133 14,803 2.51
American Baptist Churches in the USA Mainline Protestant Baptist 121 31,087 5.27
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 117 40,618 6.89
Bahá'í Other Other Groups 86 5,817 0.99
United Church of Christ Mainline Protestant Presbyterian-Reformed 83 14,430 2.45
Buddhists Other Other Groups 80 --- ---
Christian and Missionary Alliance, The Evangelical Protestant Holiness 74 19,805 3.36
Conservative Baptist Association of America Evangelical Protestant Baptist 70 16,594 2.82
General Association of Regular Baptist Churches Evangelical Protestant Baptist 66 11,499 1.95
Christian Churches and Churches of Christ Evangelical Protestant Baptist 63 21,621 3.67
Christian Church (Disciples of Christ) Mainline Protestant Baptist 60 12,407 2.10
Free Methodist Church of North America Evangelical Protestant Holiness 51 9,677 1.64
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 47 7,727 1.31
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 46 17,551 2.98
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 46 5,648 0.96
Friends (Quakers) Mainline Protestant European Free-Church 45 3,106 0.53
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 44 --- ---
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 42 9,801 1.66
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 40 11,033 1.87
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 40 5,769 0.98
Jewish Other Judaism 36 43,500 7.38
Community of Christ Other Latter-day Saints 31 3,864 0.66
Independent, Non-Charismatic Churches Evangelical Protestant
----
30 33,070 5.61
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 30 1,740 0.30
Unitarian Universalist Association of Congregations Other Liberal 29 5,828 0.99
Salvation Army Evangelical Protestant Holiness 28 7,605 1.29
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 27 4,078 0.69
Pentecostal Church of God Evangelical Protestant Pentecostal 25 1,544 0.26
Church of God of Prophecy Evangelical Protestant Pentecostal 24 927 0.16
Independent, Charismatic Churches Evangelical Protestant Pentecostal 23 33,430 5.67
North American Baptist Conference Evangelical Protestant Baptist 23 3,056 0.52
American Baptist Association, The Evangelical Protestant Baptist 22 1,159 0.20
Vineyard USA Evangelical Protestant Pentecostal 22 3,874 0.66
Muslim Estimate Other Other Groups 18 15,553 2.64
Hindus Other Other Groups 17 --- ---
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 15 2,380 0.40
Church of the Brethren Evangelical Protestant European Free-Church 12 1,455 0.25
U.S. Mennonite Brethren Evangelical Protestant European Free-Church 12 2,292 0.39
Reformed Church in America Mainline Protestant Presbyterian-Reformed 10 3,559 0.60
Association of Free Lutheran Congregations Evangelical Protestant Lutheran 9 1,065 0.18
Wesleyan Church, The Evangelical Protestant Holiness 9 1,511 0.26
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 8 598 0.10
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 7 3,897 0.66
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 7 314 0.05
Reformed Baptist Churches Evangelical Protestant Baptist 7 --- ---
Baptist Missionary Association of America Evangelical Protestant Baptist 6 455 0.08
Hutterian Brethren Evangelical Protestant Communal 6 600 0.10
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 6 1,230 0.21
Mennonite Church USA Evangelical Protestant European Free-Church 6 593 0.10
Missionary Church, The Evangelical Protestant Holiness 6 398 0.07
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox Eastern Liturgical (Orthodox) 5 1,180 0.20
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 5 814 0.14
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 5 812 0.14
Mennonite; Other Groups Evangelical Protestant European Free-Church 4 145 0.02
Sikh Other Other Groups 4 --- ---
Church of God General Conference Evangelical Protestant Adventist 3 119 0.02
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 3 119 0.02
Church of God in Christ, Mennonite Evangelical Protestant European Free-Church 2 143 0.02
Evangelical Presbyterian Church Evangelical Protestant Presbyterian-Reformed 2 806 0.14
Holy Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 2 184 0.03
National Association of Free Will Baptists Evangelical Protestant Baptist 2 173 0.03
Netherlands Reformed Congregations Evangelical Protestant Presbyterian-Reformed 2 321 0.05
Primitive Baptist Church, The Evangelical Protestant Baptist 2 --- ---
Southwide Baptist Fellowship Evangelical Protestant Baptist 2 --- ---
United Reformed Churches in North America Evangelical Protestant Presbyterian-Reformed 2 434 0.07
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox Eastern Liturgical (Orthodox) 1 280 0.05
Apostolic Christian Churches (Nazarene) Evangelical Protestant European Free-Church 1 70 0.01
Armenian Church of North America (Catholicosate of Etchmiadzin) Orthodox Eastern Liturgical (Orthodox) 1 924 0.16
Associate Reformed Presbyterian Church Evangelical Protestant Presbyterian-Reformed 1 19 0.00
International Churches of Christ Evangelical Protestant Baptist 1 601 0.10
Old Order Amish Evangelical Protestant European Free-Church 1 34 0.01
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox Eastern Liturgical (Orthodox) 1 77 0.01
Protestant Reformed Churches in America Evangelical Protestant Presbyterian-Reformed 1 131 0.02
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Serbian Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 1 400 0.07
Tao Other Other Groups 1 --- ---
Zoroastrian Other Other Groups 1 --- ---
Totals: 4,649 1,942,850  

The population of Washington was 5,894,121 in 2000; in 1990 it was 4,866,692. The total population changed 21.1%. The adherent totals of the religious groups listed above (1,942,850) included 33.0% of the total population in 2000.

* 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.


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