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

Clackamas County, Oregon

Religious Traditions, 2010

49,829   15,118 2,275 27,128 15,447 266,195
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]


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 20 8,877 31.8
Assemblies of God Evangelical Protestant Pentecostal 15 3,017 10.8
Conservative Baptist Association of America Evangelical Protestant Baptist 14 --- ---
Christian Churches and Churches of Christ Evangelical Protestant Restoration Movement 13 3,663 13.1
Evangelical Lutheran Church in America Mainline Protestant Lutheran 13 6,844 24.5
United Methodist Church, The Mainline Protestant Methodist/Pietist 13 3,716 13.3
Catholic Church Catholic Catholicism 9 16,192 58.1
Seventh-day Adventist Church Evangelical Protestant Adventist 9 4,130 14.8
Church of the Nazarene Evangelical Protestant Holiness 8 1,312 4.7
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 8 2,757 9.9
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 8 3,026 10.9
Southern Baptist Convention Evangelical Protestant Baptist 8 1,473 5.3
Churches of Christ Evangelical Protestant Restoration Movement 7 662 2.4
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 7 2,574 9.2
American Baptist Churches in the USA Mainline Protestant Baptist 6 1,554 5.6
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 6 2,412 8.6
United Church of Christ Mainline Protestant Presbyterian-Reformed 6 974 3.5
Christian and Missionary Alliance, The Evangelical Protestant Holiness 4 520 1.9
Mennonite Church USA Evangelical Protestant European Free-Church 3 870 3.1
Advent Christian Church Evangelical Protestant Adventist 2 86 0.3
Church of Christ, Scientist Other Christian Science 2 --- ---
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 2 420 1.5
Independent, Non-Charismatic Churches Evangelical Protestant
2 4,400 15.8
North American Baptist Conference Evangelical Protestant Baptist 2 225 0.8
Unitarian Universalist Association of Congregations Other Liberal 2 128 0.5
Christian Brethren Evangelical Protestant Ind. Fundamentalist 1 100 0.4
Christian Church (Disciples of Christ) Mainline Protestant Restoration Movement 1 593 2.1
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 1 46 0.2
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 1 215 0.8
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant Presbyterian-Reformed 1 25 0.1
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 1 9 0.0
Evangelical Methodist Church Evangelical Protestant Methodist/Pietist 1 53 0.2
Free Methodist Church of North America Evangelical Protestant Holiness 1 35 0.1
Friends (Quakers) Mainline Protestant European Free-Church 1 204 0.7
Independent, Charismatic Churches Evangelical Protestant Pentecostal 1 5,100 18.3
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 1 83 0.3
Primitive Baptists Associations Evangelical Protestant Baptist 1 21 0.1
Wesleyan Church, The Evangelical Protestant Holiness 1 160 0.6
Jewish Other Judaism 0 1,396 5.0
Apostolic Christian Church of America, Inc. Evangelical Protestant European Free-Church --- --- ---
Black Baptists Estimate Evangelical Protestant Baptist --- 306 1.1
International Pentecostal Holiness Church Evangelical Protestant Pentecostal --- --- ---
National Association of Free Will Baptists Evangelical Protestant Baptist --- --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) --- --- ---
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox Eastern Liturgical (Orthodox) --- --- ---
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran --- --- ---
Totals: 202 78,178  

The population of Clackamas County, Oregon was 278,850 in 1990; in 1980 it was 241,919. The total population changed 15.3%. The adherent totals of the religious groups listed above (78,178) included 28.0% 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 for those who are interested in these trends.


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.

Bookmark and Share