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Nassau County (New York), Suffolk County (New York)

Religious Traditions, 2010

98,832 21,487 119,386 1,556,606 26,948 152,783 856,840
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]

Reports


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
African Methodist Episcopal Church Black Protestant Methodist/Pietist 18 4,258 1.50
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 18 3,022 1.07
American Association of Lutheran Churches Evangelical Protestant Lutheran 1 --- ---
American Baptist Churches in the USA Mainline Protestant Baptist 22 4,929 1.74
American Carpatho-Russian Orthodox Diocese Orthodox Eastern Liturgical (Orthodox) 1 135 0.05
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox Eastern Liturgical (Orthodox) 2 400 0.14
Apostolic Faith Mission of Portland, OR Evangelical Protestant Pentecostal 1 42 0.01
Assemblies of God Evangelical Protestant Pentecostal 64 9,616 3.39
Associate Reformed Presbyterian Church Evangelical Protestant Presbyterian-Reformed 2 44 0.02
Association of Reformed Baptist Churches of America Evangelical Protestant Baptist 2 --- ---
Bahá'í Other Other Groups 8 564 0.20
Bible Presbyterian Church (General Synod) Evangelical Protestant Presbyterian-Reformed 1 --- ---
Buddhism, Mahayana Other Other Groups 9 3,535 1.25
Buddhism, Theravada Other Other Groups 1 1,364 0.48
Buddhism, Vajrayana Other Other Groups 2 913 0.32
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 3 --- ---
Catholic Church Catholic Catholicism 146 1,556,606 549.48
Christian and Missionary Alliance, The Evangelical Protestant Holiness 11 972 0.34
Christian Brethren Evangelical Protestant Ind. Fundamentalist 3 --- ---
Christian Church (Disciples of Christ) Mainline Protestant Baptist 5 242 0.09
Christian Churches and Churches of Christ Evangelical Protestant Baptist 12 2,493 0.88
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 82 0.03
Church of Christ, Scientist Other Christian Science 10 --- ---
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 4 255 0.09
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 46 8,599 3.04
Church of God (Seventh Day) Evangelical Protestant Adventist 1 --- ---
Church of God in Christ Black Protestant Pentecostal 18 2,148 0.76
Church of God of Prophecy Evangelical Protestant Pentecostal 10 1,048 0.37
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 14 5,388 1.90
Church of Our Lord Jesus Christ of the Apostolic Faith, Inc. Black Protestant Pentecostal 6 --- ---
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran 2 289 0.10
Church of the Nazarene Evangelical Protestant Holiness 28 3,153 1.11
Churches of Christ Evangelical Protestant Baptist 12 1,876 0.66
Communion of Reformed Evangelical Churches Evangelical Protestant Presbyterian-Reformed 1 --- ---
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant Presbyterian-Reformed 1 417 0.15
Conservative Baptist Association of America Evangelical Protestant Baptist 6 --- ---
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 1 15 0.01
Conservative Judaism Other Judaism 39 27,493 9.70
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 4 750 0.26
Coptic Orthodox Church Orthodox Eastern Liturgical (Orthodox) 1 1,500 0.53
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 82 24,028 8.48
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 1 26 0.01
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 9 1,077 0.38
Evangelical Lutheran Church in America Mainline Protestant Lutheran 61 34,039 12.02
Friends General Conference and Friends United Meeting, dually aligned meetings* Mainline Protestant European Free-Church 9 407 0.14
Full Gospel Baptist Church Fellowship Black Protestant Baptist 3 --- ---
General Association of Regular Baptist Churches Evangelical Protestant Baptist 5 --- ---
Grace Gospel Fellowship Evangelical Protestant Ind. Fundamentalist 1 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 13 22,040 7.78
Hindu, Indian-American Hindu Temple Assoc. Other Other Groups 4 2,485 0.88
Hindu, Post Renaissance Other Other Groups 5 237 0.08
Hindu, Traditional Temples Other Other Groups 1 400 0.14
International Churches of Christ Evangelical Protestant Baptist 0 263 0.09
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 2 --- ---
International Fellowship of Bible Churches Evangelical Protestant
----
1 --- ---
International Fellowship of Christian Assemblies Evangelical Protestant
----
4 --- ---
Jehovah's Witnesses Other Adventist 36 --- ---
Korean Presbyterian Church Abroad Evangelical Protestant Presbyterian-Reformed 4 --- ---
Korean Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 8 --- ---
Korean-American Presbyterian Church Evangelical Protestant Presbyterian-Reformed 6 --- ---
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 23 16,785 5.93
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran 4 774 0.27
Malankara Archdiocese of the Syrian Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 2 558 0.20
Malankara Orthodox Syrian Church Orthodox Eastern Liturgical (Orthodox) 5 1,355 0.48
Missionary Church, The Evangelical Protestant Holiness 2 195 0.07
Muslim Estimate Other Other Groups 25 35,577 12.56
National Baptist Convention of America, Inc. Black Protestant Baptist 5 1,673 0.59
National Baptist Convention, USA, Inc. Black Protestant Baptist 22 10,020 3.54
National Missionary Baptist Convention, Inc. Black Protestant Baptist 1 183 0.06
National Spiritualist Association of Churches Other Spiritualist 4 --- ---
New Apostolic Church of North America, National Organization of the Other Other Groups 7 --- ---
Non-denominational Evangelical Protestant
----
141 39,135 13.81
North American Baptist Conference Evangelical Protestant Baptist 2 282 0.10
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 4 400 0.14
Orthodox Judaism Other Judaism 74 44,800 15.81
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 3 428 0.15
Pentecostal Fire-Baptized Holiness Church Evangelical Protestant Pentecostal 2 --- ---
Polish National Catholic Church Catholic Catholicism 2 --- ---
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 59 13,658 4.82
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 5 343 0.12
Progressive National Baptist Convention, Inc. Black Protestant Baptist 1 183 0.06
Reconstructionist Judaism Other Judaism 3 1,739 0.61
Reform Judaism Other Judaism 29 26,036 9.19
Reformed Baptist Churches Evangelical Protestant Baptist 3 --- ---
Reformed Church in America Mainline Protestant Presbyterian-Reformed 15 2,612 0.92
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 2 210 0.07
Salvation Army Evangelical Protestant Holiness 6 1,853 0.65
Seventh-day Adventist Church Evangelical Protestant Adventist 45 6,203 2.19
Sikh Other Other Groups 3 --- ---
Southern Baptist Convention Evangelical Protestant Baptist 12 1,089 0.38
Syriac Orthodox Church of Antioch Orthodox Eastern Liturgical (Orthodox) 1 200 0.07
U.S. Mennonite Brethren Evangelical Protestant European Free-Church 1 0 0.00
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) 1 150 0.05
Union of Messianic Jewish Congregations Other Judaism 2 --- ---
Unitarian Universalist Association of Congregations Other Liberal 11 2,138 0.75
United Church of Christ Mainline Protestant Presbyterian-Reformed 23 6,138 2.17
United Holy Church of America, Inc. Black Protestant Pentecostal 2 --- ---
United Methodist Church, The Mainline Protestant Methodist/Pietist 87 32,916 11.62
United Pentecostal Church International Evangelical Protestant Pentecostal 5 --- ---
United Reformed Churches in North America Evangelical Protestant Presbyterian-Reformed 1 --- ---
Unity Churches, Association of Other Other Groups 5 --- ---
Vineyard USA Evangelical Protestant Pentecostal 3 827 0.29
Wesleyan Church, The Evangelical Protestant Holiness 1 260 0.09
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 58 0.02
Zoroastrian Other Other Groups 0 114 0.04
Totals: 1,447 1,976,042  

The population of these 2 counties was 2,832,882 in 2010. The adherent totals of the religious groups listed above (1,976,042) included 69.8% 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 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.


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