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Harford County (Maryland)

Religious Traditions, 2010

23,645 1,628 22,305 44,618 900 2,675 149,055
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 35 14,141 57.76
Non-denominational Evangelical Protestant
29 5,029 20.54
Southern Baptist Convention Evangelical Protestant Baptist 22 6,024 24.61
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 11 2,880 11.76
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 10 1,119 4.57
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 10 1,800 7.35
Catholic Church Catholic Catholicism 9 44,618 182.24
Evangelical Lutheran Church in America Mainline Protestant Lutheran 6 3,175 12.97
African Methodist Episcopal Church Black Protestant Methodist/Pietist 5 922 3.77
Christian Churches and Churches of Christ Evangelical Protestant Baptist 5 3,779 15.44
Assemblies of God Evangelical Protestant Pentecostal 4 967 3.95
Church of the Nazarene Evangelical Protestant Holiness 3 962 3.93
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 3 380 1.55
Seventh-day Adventist Church Evangelical Protestant Adventist 3 331 1.35
United Pentecostal Church International Evangelical Protestant Pentecostal 3 --- ---
Anglican Church in North America Evangelical Protestant Episcopalianism/Anglicanism 2 --- ---
Bahá'í Other Other Groups 2 54 0.22
Christian and Missionary Alliance, The Evangelical Protestant Holiness 2 173 0.71
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 2 1,798 7.34
Churches of Christ Evangelical Protestant Baptist 2 247 1.01
Friends General Conference and Friends United Meeting, dually aligned meetings* Mainline Protestant European Free-Church 2 150 0.61
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 2 960 3.92
Unitarian Universalist Association of Congregations Other Liberal 2 272 1.11
Church of Christ, Scientist Other Christian Science 1 --- ---
Church of God in Christ Black Protestant Pentecostal 1 92 0.38
Church of God of Prophecy Evangelical Protestant Pentecostal 1 58 0.24
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 100 0.41
Full Gospel Baptist Church Fellowship Black Protestant Baptist 1 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 750 3.06
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 1 44 0.18
Jehovah's Witnesses Other Adventist 1 --- ---
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran 1 3,223 13.16
National Association of Free Will Baptists Evangelical Protestant Baptist 1 55 0.22
National Baptist Convention of America, Inc. Black Protestant Baptist 1 184 0.75
National Baptist Convention, USA, Inc. Black Protestant Baptist 1 430 1.76
Orthodox Judaism Other Judaism 1 60 0.25
Reform Judaism Other Judaism 1 483 1.97
Salvation Army Evangelical Protestant Holiness 1 120 0.49
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) 1 150 0.61
United Church of Christ Mainline Protestant Presbyterian-Reformed 1 159 0.65
Vineyard USA Evangelical Protestant Pentecostal 1 74 0.30
Zoroastrian Other Other Groups 0 8 0.03
Totals: 192 95,771  

The population of Harford County, Maryland was 244,826 in 2010; in 2000 it was 218,590. The total population changed 12.0%. The adherent totals of the religious groups listed above (95,771) included 39.1% 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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