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Sonoma County (California)

Religious Traditions, 2010

25,820 102 11,546 107,737 1,389 23,398 313,886
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
Catholic Church Catholic Catholicism 21 90,020 196.29
Jewish Other Judaism 7 9,000 19.62
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 20 7,518 16.39
Southern Baptist Convention Evangelical Protestant Baptist 16 4,693 10.23
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 8 3,469 7.56
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 9 3,100 6.76
United Methodist Church, The Mainline Protestant Methodist/Pietist 9 2,943 6.42
Evangelical Lutheran Church in America Mainline Protestant Lutheran 5 2,753 6.00
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 9 2,630 5.73
Assemblies of God Evangelical Protestant Pentecostal 17 2,439 5.32
Seventh-day Adventist Church Evangelical Protestant Adventist 7 1,981 4.32
Muslim Estimate Other Other Groups 1 1,891 4.12
United Church of Christ Mainline Protestant Presbyterian-Reformed 8 1,566 3.41
Independent, Non-Charismatic Churches Evangelical Protestant
1 1,500 3.27
Christian and Missionary Alliance, The Evangelical Protestant Holiness 6 1,354 2.95
General Association of Regular Baptist Churches Evangelical Protestant Baptist 4 1,153 2.51
Christian Churches and Churches of Christ Evangelical Protestant Baptist 3 928 2.02
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 2 895 1.95
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 6 849 1.85
Churches of Christ Evangelical Protestant Baptist 12 837 1.83
Conservative Baptist Association of America Evangelical Protestant Baptist 3 770 1.68
Church of the Nazarene Evangelical Protestant Holiness 3 693 1.51
New Testament Association of Independent Baptist Churches and other Fundamental Bapti Evangelical Protestant Baptist 4 658 1.43
Salvation Army Evangelical Protestant Holiness 2 472 1.03
Bahá'í Other Other Groups 7 324 0.71
Unitarian Universalist Association of Congregations Other Liberal 1 322 0.70
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 1 320 0.70
Pentecostal Church of God Evangelical Protestant Pentecostal 4 287 0.63
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 2 280 0.61
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 241 0.53
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 174 0.38
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 1 160 0.35
Vineyard USA Evangelical Protestant Pentecostal 1 160 0.35
Church of God of Prophecy Evangelical Protestant Pentecostal 3 147 0.32
American Baptist Churches in the USA Mainline Protestant Baptist 1 145 0.32
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 2 112 0.24
Friends (Quakers) Mainline Protestant European Free-Church 2 79 0.17
Reformed Church in America Mainline Protestant Presbyterian-Reformed 1 71 0.15
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 66 0.14
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox Eastern Liturgical (Orthodox) 1 62 0.14
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 60 0.13
National Association of Free Will Baptists Evangelical Protestant Baptist 1 59 0.13
Community of Christ Other Latter-day Saints 1 56 0.12
Christian Church (Disciples of Christ) Mainline Protestant Baptist 1 55 0.12
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 1 55 0.12
American Baptist Association, The Evangelical Protestant Baptist 1 41 0.09
Free Methodist Church of North America Evangelical Protestant Holiness 1 37 0.08
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 3 27 0.06
Buddhists Other Other Groups 10 --- ---
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 3 --- ---
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 2 --- ---
Totals: 238 147,452  

The population of Sonoma County, California was 458,614 in 2000; in 1990 it was 388,222. The total population changed 18.1%. The adherent totals of the religious groups listed above (147,452) included 32.2% 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 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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