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Connecticut

Religious Traditions, 2010

157,336 22,969 281,174 19,632 1,254,340 95,411 1,743,235
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]

Reports


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Catholic Church Catholic Catholicism 416 1,374,747 418.2
United Church of Christ Mainline Protestant Presbyterian-Reformed 260 135,231 41.1
Jewish Other Judaism 106 115,460 35.1
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 186 78,804 24.0
Black Baptists Estimate Evangelical Protestant Baptist --- 64,609 19.7
United Methodist Church, The Mainline Protestant Methodist/Pietist 134 56,372 17.1
American Baptist Churches in the USA Mainline Protestant Baptist 127 48,208 14.7
Evangelical Lutheran Church in America Mainline Protestant Lutheran 76 35,537 10.8
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 31 22,155 6.7
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 36 15,206 4.6
Assemblies of God Evangelical Protestant Pentecostal 76 14,060 4.3
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 20 10,191 3.1
Independent, Charismatic Churches Evangelical Protestant Pentecostal 16 9,815 3.0
Southern Baptist Convention Evangelical Protestant Baptist 28 8,925 2.7
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 24 8,075 2.5
Seventh-day Adventist Church Evangelical Protestant Adventist 28 4,837 1.5
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 26 4,491 1.4
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant Presbyterian-Reformed 12 4,240 1.3
Unitarian Universalist Association of Congregations Other Liberal 20 4,167 1.3
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 30 3,569 1.1
Independent, Non-Charismatic Churches Evangelical Protestant
----
9 3,540 1.1
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 16 2,519 0.8
Church of the Nazarene Evangelical Protestant Holiness 19 2,453 0.7
Churches of Christ Evangelical Protestant Baptist 31 2,438 0.7
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 13 2,412 0.7
Christian Brethren Evangelical Protestant Ind. Fundamentalist 15 2,178 0.7
Armenian Apostolic Church of America (Catholicosate of Cilicia) Orthodox Eastern Liturgical (Orthodox) 1 1,600 0.5
Salvation Army Evangelical Protestant Holiness 18 1,461 0.4
Christian and Missionary Alliance, The Evangelical Protestant Holiness 12 1,363 0.4
American Carpatho-Russian Orthodox Diocese Orthodox Eastern Liturgical (Orthodox) 4 1,333 0.4
Friends (Quakers) Mainline Protestant European Free-Church 10 791 0.2
Estonian Evangelical Lutheran Church Mainline Protestant Lutheran 1 690 0.2
Christian Church (Disciples of Christ) Mainline Protestant Baptist 5 683 0.2
Advent Christian Church Evangelical Protestant Adventist 9 640 0.2
Apostolic Christian Church of America, Inc. Evangelical Protestant European Free-Church 1 595 0.2
Christian Churches and Churches of Christ Evangelical Protestant Baptist 8 530 0.2
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox Eastern Liturgical (Orthodox) 1 488 0.1
Church of God of Prophecy Evangelical Protestant Pentecostal 10 342 0.1
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 2 310 0.1
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 4 280 0.1
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 263 0.1
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 2 244 0.1
Latvian Evangelical Lutheran Church in America Mainline Protestant Lutheran 2 228 0.1
Hutterian Brethren Evangelical Protestant Communal 1 225 0.1
Free Methodist Church of North America Evangelical Protestant Holiness 1 199 0.1
Mennonite Church USA Evangelical Protestant European Free-Church 3 195 0.1
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 3 190 0.1
Wesleyan Church, The Evangelical Protestant Holiness 1 165 0.1
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran 2 164 0.0
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 5 152 0.0
Seventh Day Baptist General Conference, USA and Canada Evangelical Protestant Baptist 2 89 0.0
Pentecostal Church of God Evangelical Protestant Pentecostal 1 85 0.0
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 1 39 0.0
North American Baptist Conference Evangelical Protestant Baptist 1 37 0.0
Apostolic Christian Churches (Nazarene) Evangelical Protestant European Free-Church 1 22 0.0
Christ Catholic Church Evangelical Protestant Catholicism 1 4 0.0
Church of Christ, Scientist Other Christian Science 26 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 14 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 16 --- ---
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 3 --- ---
International Pentecostal Church of Christ Evangelical Protestant Pentecostal --- --- ---
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 1 --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 12 --- ---
Orthodox Church in America: Albanian Orthodox Archdiocese Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Orthodox Church in America: Romanian Orthodox Episcopate of America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Totals: 1,944 2,047,646  

The population of Connecticut was 3,287,116 in 1990; in 1980 it was 3,107,576. The total population changed 5.8%. The adherent totals of the religious groups listed above (2,047,646) included 62.3% 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 www.usreligioncensus.org for those who are interested in these trends.

Source

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.