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Sussex County (Delaware)

Religious Traditions, 2010

16,640 2,914 23,803 27,681 220 655 125,232
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 % Change
Catholic Church Catholic Catholicism +1 +15517 +127.6%
Southern Baptist Convention Evangelical Protestant Baptist +5 +521 +66.4%
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 0 +259 +8%
Evangelical Lutheran Church in America Mainline Protestant Lutheran +1 +224 +31.9%
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 0 +200 +9.4%
Christian Churches and Churches of Christ Evangelical Protestant Baptist 0 +175 +20.4%
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 0 +143 +46.3%
Seventh-day Adventist Church Evangelical Protestant Adventist +2 +141 +37.1%
Christian and Missionary Alliance, The Evangelical Protestant Holiness 0 +125 +25%
Church of the Nazarene Evangelical Protestant Holiness +2 +118 +25.5%
Assemblies of God Evangelical Protestant Pentecostal +1 +107 +25.2%
Christian Church (Disciples of Christ) Mainline Protestant Baptist +1 +77 +256.7%
Brethren Church, The (Ashland, Ohio) Evangelical Protestant European Free-Church 0 +64 +206.5%
Church of God of Prophecy Evangelical Protestant Pentecostal 0 +45 +26.2%
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 0 +28 +11.3%
Churches of Christ Evangelical Protestant Baptist +1 +18 +6.9%
Salvation Army Evangelical Protestant Holiness 0 +17 +50%
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 0 +15 +12%
Mennonite Church USA Evangelical Protestant European Free-Church +1 +15 +9.6%
Unitarian Universalist Association of Congregations Other Liberal 0 +15 +12.9%
United Church of Christ Mainline Protestant Presbyterian-Reformed 0 +14 +350%
Bahá'í Other Other Groups 0 +8 +12.9%
Wesleyan Church, The Evangelical Protestant Holiness 0 0 0%
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 0 -28 -40%
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 0 -57 -9.2%
Conservative Mennonite Conference Evangelical Protestant European Free-Church -1 -215 -32.5%
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 0 -424 -26.9%
United Methodist Church, The Mainline Protestant Methodist/Pietist 0 -1204 -5.9%
African Methodist Episcopal Church Black Protestant Methodist/Pietist --- --- ---
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist --- --- ---
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox Eastern Liturgical (Orthodox) --- --- ---
Association of Reformed Baptist Churches of America Evangelical Protestant Baptist --- --- ---
Bible Fellowship Church Evangelical Protestant Holiness --- --- ---
Church of Christ, Scientist Other Christian Science --- --- ---
Church of God in Christ Black Protestant Pentecostal --- --- ---
Churches of God, General Conference Evangelical Protestant Presbyterian-Reformed --- --- ---
Elim Fellowship Evangelical Protestant Pentecostal --- --- ---
Friends General Conference* Mainline Protestant European Free-Church --- --- ---
General Association of Regular Baptist Churches Evangelical Protestant Baptist 0 --- ---
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist --- --- ---
Jehovah's Witnesses Other Adventist --- --- ---
Non-denominational Evangelical Protestant
--- --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) --- --- ---
Pentecostal Fire-Baptized Holiness Church Evangelical Protestant Pentecostal --- --- ---
United Pentecostal Church International Evangelical Protestant Pentecostal --- --- ---
Zoroastrian Other Other Groups --- --- ---
Totals: +14 +15918 +33.2%

The population of Sussex County, Delaware was 156,638 in 2000; in 1990 it was 113,229. The total population changed 38.3%. The adherent totals of the religious groups listed above (49,036) included 31.3% of the total population in 2000.

The population of Sussex County, Delaware was 197,145 in 2010; in 2000 it was 156,638. The total population changed 25.9%. The adherent totals of the religious groups listed above (71,913) included 36.5% 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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