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San Mateo County (California)

Religious Traditions, 2010

24,771 2,046 23,840 243,634 5,350 31,697 387,113
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 39 165,966 255.48
Jewish Other Judaism 5 41,500 63.88
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 11 10,205 15.71
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 22 9,642 14.84
Black Baptists Estimate Evangelical Protestant Baptist --- 9,156 14.09
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 15 6,683 10.29
United Methodist Church, The Mainline Protestant Methodist/Pietist 14 3,863 5.95
Evangelical Lutheran Church in America Mainline Protestant Lutheran 10 3,676 5.66
Independent, Charismatic Churches Evangelical Protestant Pentecostal 1 3,600 5.54
Assemblies of God Evangelical Protestant Pentecostal 23 3,525 5.43
United Church of Christ Mainline Protestant Presbyterian-Reformed 12 3,482 5.36
American Baptist Churches in the USA Mainline Protestant Baptist 13 3,392 5.22
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 8 2,907 4.47
Southern Baptist Convention Evangelical Protestant Baptist 15 2,780 4.28
Seventh-day Adventist Church Evangelical Protestant Adventist 8 1,291 1.99
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 5 1,158 1.78
Churches of Christ Evangelical Protestant Baptist 9 1,090 1.68
Church of the Nazarene Evangelical Protestant Holiness 6 457 0.70
Unitarian Universalist Association of Congregations Other Liberal 2 423 0.65
Christian Churches and Churches of Christ Evangelical Protestant Baptist 2 345 0.53
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 298 0.46
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 4 228 0.35
Christian and Missionary Alliance, The Evangelical Protestant Holiness 3 210 0.32
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 3 204 0.31
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 3 167 0.26
Reformed Church in America Mainline Protestant Presbyterian-Reformed 1 161 0.25
Christian Church (Disciples of Christ) Mainline Protestant Baptist 1 150 0.23
Free Methodist Church of North America Evangelical Protestant Holiness 3 147 0.23
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 142 0.22
Salvation Army Evangelical Protestant Holiness 1 94 0.14
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 2 81 0.12
Missionary Church, The Evangelical Protestant Holiness 1 65 0.10
Christian Brethren Evangelical Protestant Ind. Fundamentalist 1 60 0.09
Church of God of Prophecy Evangelical Protestant Pentecostal 1 38 0.06
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 20 0.03
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 0 0.00
Church of Christ, Scientist Other Christian Science 8 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 3 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 3 --- ---
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 1 --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Totals: 264 277,206  

The population of San Mateo County, California was 649,623 in 1990; in 1980 it was 587,329. The total population changed 10.6%. The adherent totals of the religious groups listed above (277,206) included 42.7% 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.

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