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New Castle County, Delaware

Religious Traditions, 2010

32,993 7,212 48,124 1,166 138,172 22,672 288,140
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
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 2 387 0.9
American Baptist Churches in the USA Mainline Protestant Baptist 8 3,179 7.2
Apostolic Christian Church of America, Inc. Evangelical Protestant European Free-Church 1 36 0.1
Apostolic Christian Churches (Nazarene) Evangelical Protestant European Free-Church --- --- ---
Assemblies of God Evangelical Protestant Pentecostal 7 703 1.6
Black Baptists Estimate Evangelical Protestant Baptist --- 27,298 61.8
Catholic Church Catholic Catholicism 35 105,069 237.7
Christian and Missionary Alliance, The Evangelical Protestant Holiness 3 237 0.5
Christian Brethren Evangelical Protestant Ind. Fundamentalist 1 55 0.1
Christian Church (Disciples of Christ) Mainline Protestant Restoration Movement 1 141 0.3
Christian Churches and Churches of Christ Evangelical Protestant Restoration Movement 1 25 0.1
Church of Christ, Scientist Other Christian Science 2 --- ---
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 3 221 0.5
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 2 313 0.7
Church of God of Prophecy Evangelical Protestant Pentecostal 4 134 0.3
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 5 1,850 4.2
Church of the Brethren Evangelical Protestant European Free-Church 1 145 0.3
Church of the Nazarene Evangelical Protestant Holiness 4 459 1.0
Churches of Christ Evangelical Protestant Restoration Movement 5 883 2.0
Conservative Baptist Association of America Evangelical Protestant Baptist 1 --- ---
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 2 944 2.1
Eastern Pennsylvania Mennonite Church Evangelical Protestant European Free-Church 1 45 0.1
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 21 9,216 20.9
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 601 1.4
Evangelical Lutheran Church in America Mainline Protestant Lutheran 9 5,816 13.2
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal --- --- ---
Friends (Quakers) Mainline Protestant European Free-Church 7 716 1.6
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Independent, Non-Charismatic Churches Evangelical Protestant
3 2,850 6.4
International Pentecostal Holiness Church Evangelical Protestant Pentecostal --- --- ---
Jewish Other Judaism 3 8,850 20.0
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 3 1,178 2.7
Mennonite Church USA Evangelical Protestant European Free-Church 1 31 0.1
National Association of Free Will Baptists Evangelical Protestant Baptist 4 614 1.4
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 26 13,075 29.6
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 6 2,355 5.3
Reformed Episcopal Church Evangelical Protestant Episcopalianism/Anglicanism 1 14 0.0
Salvation Army Evangelical Protestant Holiness 1 189 0.4
Seventh-day Adventist Church Evangelical Protestant Adventist 4 1,178 2.7
Southern Baptist Convention Evangelical Protestant Baptist 7 3,655 8.3
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) --- --- ---
Unitarian Universalist Association of Congregations Other Liberal 3 1,453 3.3
United Church of Christ Mainline Protestant Presbyterian-Reformed 1 171 0.4
United Methodist Church, The Mainline Protestant Methodist/Pietist 56 30,690 69.4
Wesleyan Church, The Evangelical Protestant Holiness 3 349 0.8
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 191 0.4
Totals: 252 225,316  

The population of New Castle County, Delaware was 441,946 in 1990; in 1980 it was 398,115. The total population changed 11.0%. The adherent totals of the religious groups listed above (225,316) included 51.0% 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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