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Montgomery County, Maryland

Religious Traditions, 2010

104,377 3,189 73,637 9,889 122,569 70,946 587,170
Evangelical Protestant Black Protestant Mainline Protestant Orthodox 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 Adherence Rate
Catholic Church Catholic Catholicism 30 134,537 232.3
United Methodist Church, The Mainline Protestant Methodist/Pietist 63 38,090 65.8
Southern Baptist Convention Evangelical Protestant Baptist 39 22,222 38.4
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 44 10,040 17.3
Evangelical Lutheran Church in America Mainline Protestant Lutheran 15 9,295 16.1
Jewish Other Judaism 13 7,459 12.9
American Baptist Churches in the USA Mainline Protestant Baptist 10 6,643 11.5
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 8 3,643 6.3
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 6 3,034 5.2
United Church of Christ Mainline Protestant Presbyterian-Reformed 4 2,282 3.9
Unitarian Universalist Association of Congregations Other Liberal 4 2,162 3.7
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 5 1,985 3.4
Christian Church (Disciples of Christ) Mainline Protestant Restoration Movement 6 1,687 2.9
Seventh-day Adventist Church Evangelical Protestant Adventist 4 1,138 2.0
Assemblies of God Evangelical Protestant Pentecostal 7 980 1.7
Free Methodist Church of North America Evangelical Protestant Holiness 4 864 1.5
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 7 790 1.4
Friends (Quakers) Mainline Protestant European Free-Church 2 625 1.1
Churches of Christ Evangelical Protestant Restoration Movement 4 545 0.9
Latvian Evangelical Lutheran Church in America Mainline Protestant Lutheran 1 530 0.9
Armenian Apostolic Church of America (Catholicosate of Cilicia) Orthodox Eastern Liturgical (Orthodox) 1 450 0.8
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 2 438 0.8
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 3 380 0.7
Christian and Missionary Alliance, The Evangelical Protestant Holiness 2 364 0.6
Church of the Brethren Evangelical Protestant European Free-Church 2 356 0.6
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 3 281 0.5
Church of the Nazarene Evangelical Protestant Holiness 2 253 0.4
Christian Churches and Churches of Christ Evangelical Protestant Restoration Movement 1 214 0.4
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 176 0.3
Estonian Evangelical Lutheran Church Mainline Protestant Lutheran 1 129 0.2
Mennonite Church Evangelical Protestant European Free-Church 3 117 0.2
Christian Brethren Evangelical Protestant Ind. Fundamentalist 2 70 0.1
American Baptist Association, The Evangelical Protestant Baptist 1 60 0.1
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 1 30 0.1
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 1 30 0.1
Associate Reformed Presbyterian Church Evangelical Protestant Presbyterian-Reformed --- --- ---
Church of God (Seventh Day) Evangelical Protestant Adventist --- --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist --- --- ---
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism --- --- ---
Totals: 302 251,899  

The population of Montgomery County, Maryland was 579,053 in 1980. The adherent totals of the religious groups listed above (251,899) included 43.5% of the total population in 1980.

* 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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