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Benton County (Washington)

Religious Traditions, 2010

20,943 10,217 26,500 16,145 101,372
Evangelical Protestant Mainline Protestant 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 % Change
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints +3 +3933 +38%
Southern Baptist Convention Evangelical Protestant Baptist +3 -9 -0.3%
Church of the Nazarene Evangelical Protestant Holiness +2 -195 -17.5%
Seventh-day Adventist Church Evangelical Protestant Adventist +2 +353 +41.5%
Salvation Army Evangelical Protestant Holiness +1 +228 +97.9%
American Baptist Churches in the USA Mainline Protestant Baptist 0 +33 +7.3%
Assemblies of God Evangelical Protestant Pentecostal 0 -192 -13.3%
Bahá'í Other Other Groups 0 -7 -6.9%
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 0 --- ---
Catholic Church Catholic Catholicism 0 +8444 +46.8%
Christian and Missionary Alliance, The Evangelical Protestant Holiness 0 -1 -0.3%
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 0 -63 -39.9%
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 0 +112 +23.3%
Church of God of Prophecy Evangelical Protestant Pentecostal 0 +28 +71.8%
Churches of Christ Evangelical Protestant Baptist 0 +10 +1.5%
Community of Christ Other Latter-day Saints 0 -28 -17.9%
Conservative Baptist Association of America Evangelical Protestant Baptist 0 --- ---
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 0 -60 -6.5%
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 0 -90 -72%
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 0 -29 -7.5%
General Association of Regular Baptist Churches Evangelical Protestant Baptist 0 --- ---
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 0 -163 -10.4%
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 0 +17 +81%
Muslim Estimate Other Other Groups 0 +512 +177.8%
National Association of Free Will Baptists Evangelical Protestant Baptist 0 -37 -41.6%
United Church of Christ Mainline Protestant Presbyterian-Reformed 0 +30 +23.3%
United Reformed Churches in North America Evangelical Protestant Presbyterian-Reformed 0 --- ---
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 0 +62 +28.6%
Christian Church (Disciples of Christ) Mainline Protestant Baptist -1 -305 -23.3%
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal -1 -63 -24.2%
International Pentecostal Holiness Church Evangelical Protestant Pentecostal -1 -20 -38.5%
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed -1 -313 -13%
United Methodist Church, The Mainline Protestant Methodist/Pietist -1 -533 -11%
Evangelical Lutheran Church in America Mainline Protestant Lutheran -3 -1857 -59.8%
Anglican Church in North America Evangelical Protestant Episcopalianism/Anglicanism --- --- ---
Communion of Reformed Evangelical Churches Evangelical Protestant Presbyterian-Reformed --- --- ---
Conservative Judaism Other Judaism --- --- ---
Grace Brethren Churches, Fellowship of Mainline Protestant European Free-Church --- --- ---
Jehovah's Witnesses Other Adventist --- --- ---
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran --- --- ---
Non-denominational Evangelical Protestant
--- --- ---
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed --- --- ---
United Pentecostal Church International Evangelical Protestant Pentecostal --- --- ---
Totals: +3 +9797 +18.3%

The population of Benton County, Washington was 142,475 in 2000; in 1990 it was 112,560. The total population changed 26.6%. The adherent totals of the religious groups listed above (57,586) included 40.4% of the total population in 2000.

The population of Benton County, Washington was 175,177 in 2010; in 2000 it was 142,475. The total population changed 23.0%. The adherent totals of the religious groups listed above (73,805) included 42.1% of the total population in 2010.

* 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.

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