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Walla Walla County (Washington)

Religious Traditions, 2010

11,036 72 3,109 6,630 160 2,761 35,013
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]


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Seventh-day Adventist Church Evangelical Protestant Adventist 9 6,721 114.34
Catholic Church Catholic Catholicism 5 6,630 112.79
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 6 2,468 41.99
Non-denominational Evangelical Protestant
9 1,492 25.38
Assemblies of God Evangelical Protestant Pentecostal 4 1,027 17.47
United Methodist Church, The Mainline Protestant Methodist/Pietist 2 975 16.59
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 4 857 14.58
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 1 509 8.66
Evangelical Lutheran Church in America Mainline Protestant Lutheran 1 385 6.55
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 1 300 5.10
Church of the Nazarene Evangelical Protestant Holiness 2 257 4.37
Christian Church (Disciples of Christ) Mainline Protestant Baptist 2 239 4.07
Pentecostal Church of God Evangelical Protestant Pentecostal 2 217 3.69
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran 1 196 3.33
Southern Baptist Convention Evangelical Protestant Baptist 3 186 3.16
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 1 160 2.72
United Church of Christ Mainline Protestant Presbyterian-Reformed 1 138 2.35
Churches of Christ Evangelical Protestant Baptist 2 130 2.21
Community of Christ Other Latter-day Saints 1 128 2.18
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 1 125 2.13
American Baptist Association, The Evangelical Protestant Baptist 1 103 1.75
Christian and Missionary Alliance, The Evangelical Protestant Holiness 1 101 1.72
Reform Judaism Other Judaism 1 94 1.60
Church of God in Christ Black Protestant Pentecostal 1 72 1.22
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 2 72 1.22
Bahá'í Other Other Groups 1 71 1.21
Free Methodist Church of North America Evangelical Protestant Holiness 1 66 1.12
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 43 0.73
Independent Yearly Meetings of Friends* Mainline Protestant European Free-Church 1 6 0.10
Church of Christ, Scientist Other Christian Science 1 --- ---
Church of God (Seventh Day) Evangelical Protestant Adventist 1 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 1 --- ---
General Association of Regular Baptist Churches Evangelical Protestant Baptist 1 --- ---
Jehovah's Witnesses Other Adventist 1 --- ---
United Pentecostal Church International Evangelical Protestant Pentecostal 1 --- ---
Unity Churches, Association of Other Other Groups 1 --- ---
Totals: 75 23,768  

The population of Walla Walla County, Washington was 58,781 in 2010; in 2000 it was 55,180. The total population changed 6.5%. The adherent totals of the religious groups listed above (23,768) included 40.4% 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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