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New Castle County (Delaware)

Religious Traditions, 2010

32,993 7,212 48,124 138,172 1,166 22,672 288,140
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
Catholic Church Catholic Catholicism 35 105,069 237.74
United Methodist Church, The Mainline Protestant Methodist/Pietist 56 30,690 69.44
Black Baptists Estimate Evangelical Protestant Baptist --- 27,298 61.77
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 26 13,075 29.59
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 21 9,216 20.85
Jewish Other Judaism 3 8,850 20.03
Evangelical Lutheran Church in America Mainline Protestant Lutheran 9 5,816 13.16
Southern Baptist Convention Evangelical Protestant Baptist 7 3,655 8.27
American Baptist Churches in the USA Mainline Protestant Baptist 8 3,179 7.19
Independent, Non-Charismatic Churches Evangelical Protestant
3 2,850 6.45
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 6 2,355 5.33
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 5 1,850 4.19
Unitarian Universalist Association of Congregations Other Liberal 3 1,453 3.29
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 3 1,178 2.67
Seventh-day Adventist Church Evangelical Protestant Adventist 4 1,178 2.67
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 2 944 2.14
Churches of Christ Evangelical Protestant Baptist 5 883 2.00
Friends (Quakers) Mainline Protestant European Free-Church 7 716 1.62
Assemblies of God Evangelical Protestant Pentecostal 7 703 1.59
National Association of Free Will Baptists Evangelical Protestant Baptist 4 614 1.39
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 601 1.36
Church of the Nazarene Evangelical Protestant Holiness 4 459 1.04
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 2 387 0.88
Wesleyan Church, The Evangelical Protestant Holiness 3 349 0.79
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 2 313 0.71
Christian and Missionary Alliance, The Evangelical Protestant Holiness 3 237 0.54
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 3 221 0.50
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 191 0.43
Salvation Army Evangelical Protestant Holiness 1 189 0.43
United Church of Christ Mainline Protestant Presbyterian-Reformed 1 171 0.39
Church of the Brethren Evangelical Protestant European Free-Church 1 145 0.33
Christian Church (Disciples of Christ) Mainline Protestant Baptist 1 141 0.32
Church of God of Prophecy Evangelical Protestant Pentecostal 4 134 0.30
Christian Brethren Evangelical Protestant Ind. Fundamentalist 1 55 0.12
Eastern Pennsylvania Mennonite Church Evangelical Protestant European Free-Church 1 45 0.10
Apostolic Christian Church of America, Inc. Evangelical Protestant European Free-Church 1 36 0.08
Mennonite Church USA Evangelical Protestant European Free-Church 1 31 0.07
Christian Churches and Churches of Christ Evangelical Protestant Baptist 1 25 0.06
Reformed Episcopal Church Evangelical Protestant Episcopalianism/Anglicanism 1 14 0.03
Church of Christ, Scientist Other Christian Science 2 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 1 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
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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