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Loudoun County (Virginia)

Religious Traditions, 2010

17,314 199 22,080 45,687 300 34,241 192,490
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
United Methodist Church, The Mainline Protestant Methodist/Pietist 27 5,902 68.53
Southern Baptist Convention Evangelical Protestant Baptist 14 4,771 55.39
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 8 1,986 23.06
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 6 1,416 16.44
Assemblies of God Evangelical Protestant Pentecostal 4 251 2.91
Catholic Church Catholic Catholicism 4 9,440 109.60
Evangelical Lutheran Church in America Mainline Protestant Lutheran 3 1,650 19.16
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 2 41 0.48
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 2 710 8.24
Church of the Nazarene Evangelical Protestant Holiness 2 389 4.52
International Pentecostal Church of Christ Evangelical Protestant Pentecostal 2 77 0.89
Christian Churches and Churches of Christ Evangelical Protestant Baptist 1 143 1.66
Church of Christ, Scientist Other Christian Science 1 --- ---
Churches of Christ Evangelical Protestant Baptist 1 109 1.27
Free Methodist Church of North America Evangelical Protestant Holiness 1 37 0.43
Friends (Quakers) Mainline Protestant European Free-Church 1 210 2.44
Independent, Non-Charismatic Churches Evangelical Protestant
1 600 6.97
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 0 0.00
Primitive Baptists Associations Evangelical Protestant Baptist 1 10 0.12
Seventh-day Adventist Church Evangelical Protestant Adventist 1 61 0.71
United Church of Christ Mainline Protestant Presbyterian-Reformed 1 104 1.21
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 61 0.71
Jewish Other Judaism 0 9,396 109.09
Black Baptists Estimate Evangelical Protestant Baptist --- 2,388 27.73
Totals: 85 39,752  

The population of Loudoun County, Virginia was 86,129 in 1990; in 1980 it was 57,427. The total population changed 50.0%. The adherent totals of the religious groups listed above (39,752) included 46.2% 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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