County Membership Report
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King County, Washington

Denominational Groups, 2000

152,955 123,154 4,736 280,568 85,809 1,089,812
Evangelical Protestant Mainline Protestant Orthodox Catholic Other Unclaimed

Congregational "adherents" include all full members, their children, and others who regularly attend services. The historically African American denominations are not included in the 2000 congregation and membership totals. Many are also missing in 1990 and most historically African American denominations are missing in the 1980 reports.
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Reports


Religious Bodies Theology Congregations Adherents % Change
Church of Jesus Christ of Latter-day Saints, The Other Theology +15 +2,330 6.1%
International Church of the Foursquare Gospel Evangelical Protestant +14 +1,524 20.2%
Jewish Estimate Other Theology +8 +10,425 47.4%
Christian and Missionary Alliance, The Evangelical Protestant +7 +2,323 60.2%
Catholic Church Catholic +5 +69,040 32.6%
Seventh-day Adventist Church Evangelical Protestant +5 +278 3.9%
Southern Baptist Convention Evangelical Protestant +5 +338 3.0%
Baptist General Conference Evangelical Protestant +3 +1,216 33.5%
Christian Reformed Church in North America Evangelical Protestant +3 +122 12.3%
Churches of Christ Evangelical Protestant +3 -330 -7.0%
Conservative Baptist Association of America Evangelical Protestant +2 n.a. n.a.
Episcopal Church Mainline Protestant +2 +349 2.0%
Friends (Quakers) Mainline Protestant +2 +14 2.7%
Presbyterian Church (U.S.A.) Mainline Protestant +2 +1,825 7.3%
Salvation Army, The Evangelical Protestant +2 +1,737 290.0%
Unitarian Universalist Association of Congregations Other Theology +2 +317 13.9%
United Methodist Church, The Mainline Protestant +2 -3,011 -14.0%
Wisconsin Evangelical Lutheran Synod Evangelical Protestant +2 +225 26.4%
Assemblies of God Evangelical Protestant +1 +5,871 31.6%
Association of Free Lutheran Congregations, The Evangelical Protestant +1 -23 -9.3%
Christian Churches and Churches of Christ Evangelical Protestant +1 -543 -5.8%
Church of God (Anderson, Indiana) Evangelical Protestant +1 -88 -10.5%
Church of God (Cleveland, Tennessee) Evangelical Protestant +1 -61 -13.3%
Greek Orthodox Archdiocese of America Orthodox +1 n.a. n.a.
Independent, Non-Charismatic Churches Evangelical Protestant +1 +8,640 189.9%
International Pentecostal Holiness Church Evangelical Protestant +1 +54 168.8%
North American Baptist Conference Evangelical Protestant +1 -60 -28.6%
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox 0 +145 107.4%
Church of God General Conference Evangelical Protestant 0 -3 -16.7%
Evangelical Presbyterian Church Evangelical Protestant 0 +194 31.7%
Mennonite Church USA Evangelical Protestant 0 -130 -39.4%
National Association of Congregational Christian Churches Mainline Protestant 0 -13 -20.3%
National Association of Free Will Baptists Evangelical Protestant 0 +11 15.1%
Orthodox Church in America: Territorial Dioceses Orthodox 0 n.a. n.a.
Reformed Church in America Mainline Protestant 0 -304 -46.2%
Christian Church (Disciples of Christ) Mainline Protestant -1 -997 -27.0%
Church of God of Prophecy Evangelical Protestant -1 -24 -24.5%
Church of the Brethren Evangelical Protestant -1 -141 -21.5%
Church of the Nazarene Evangelical Protestant -1 +2,199 41.8%
Evangelical Free Church of America, The Evangelical Protestant -1 +84 7.9%
Lutheran Church--Missouri Synod Evangelical Protestant -1 +177 1.6%
Pentecostal Church of God Evangelical Protestant -1 -150 -65.2%
Presbyterian Church in America Evangelical Protestant -1 -256 -22.1%
Evangelical Lutheran Church in America Mainline Protestant -2 -3,311 -8.6%
United Church of Christ Mainline Protestant -2 -761 -8.9%
Wesleyan Church, The Evangelical Protestant -2 -146 -77.7%
American Baptist Churches in the USA Mainline Protestant -3 -720 -5.5%
Free Methodist Church of North America Evangelical Protestant -3 +348 13.5%
Independent, Charismatic Churches Evangelical Protestant -8 +3,075 21.2%
  Totals: +65 +101,789 +19.7%

The population of this county (or equivalent) in 1990 was 1,507,319; in 2000 it was 1,737,034. The total population changed 15.2%. The adherent totals for 1990 (539,726) represent 35.8% of the 1990 population. The adherent totals for 2000 (647,222) include 37.3% of the 2000 population. The totals represent the change in groups that reported in both 1990 and 2000 only. There is sufficient data for 46 groups to calculate 1990-2000 change. These 46 groups had 516,531 adherents in 1990 and 618,320 adherents in 2000, for a change of 19.7%

Sources

The 2000 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and includes statistics for 149 religious groups, including number of churches and adherents. Dale E. Jones, Sherri Doty, Clifford Grammich, James E. Horsch, Richard Houseal, Mac Lynn, John P. Marcum, Kenneth M. Sanchagrin and Richard H. Taylor supervised the collection. These data originally appeared in Religious Congregations & Membership in the United States, 2000, published by the Glenmary Research Center.

The 1990 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 132 religious groups, including number of churches and adherents. Martin B. Bradley, Norman M. Green, Jr., Dale E. Jones, Mac Lynn, and Lou McNeil supervised the collection. These data originally appeared in Churches and Church Membership in the United States, 1990, published by the Glenmary Research Center.

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