County Membership Report
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Suffolk County, New York

Denominational Groups, 2000

32,240 77,831 4,814 734,174 115,662 454,648
Evangelical Protestant Mainline Protestant Orthodox Catholic Other Unclaimed

Congregational "adherents" include all full members, their children, and others who regularly attend services. The historically African American denominations are not included in the 2000 congregation and membership totals. Many are also missing in 1990 and most historically African American denominations are missing in the 1980 reports.
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Reports


Religious Bodies Theology Congregations Adherents % Change
Jewish Estimate Other Theology +12 -6,200 -5.8%
Church of God (Cleveland, Tennessee) Evangelical Protestant +8 +1,250 51.4%
Assemblies of God Evangelical Protestant +6 +549 17.2%
Church of the Nazarene Evangelical Protestant +5 +445 74.3%
Church of Jesus Christ of Latter-day Saints, The Other Theology +3 +1,046 84.8%
Seventh-day Adventist Church Evangelical Protestant +3 +497 45.6%
Catholic Church Catholic +2 +46,418 6.7%
Christian and Missionary Alliance, The Evangelical Protestant +1 -48 -15.7%
Church of God of Prophecy Evangelical Protestant +1 +102 152.2%
Churches of Christ Evangelical Protestant +1 +240 24.3%
Evangelical Free Church of America, The Evangelical Protestant +1 +295 88.1%
Greek Orthodox Archdiocese of America Orthodox +1 n.a. n.a.
North American Baptist Conference Evangelical Protestant +1 +5 10.2%
Presbyterian Church (U.S.A.) Mainline Protestant +1 -210 -1.7%
Reformed Church in America Mainline Protestant +1 -359 -20.5%
Salvation Army, The Evangelical Protestant +1 +142 289.8%
Southern Baptist Convention Evangelical Protestant +1 -407 -35.2%
Church of God (Anderson, Indiana) Evangelical Protestant 0 +40 n.a.
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant 0 -179 -28.3%
Lutheran Church--Missouri Synod Evangelical Protestant 0 +1,483 10.9%
Orthodox Church in America: Territorial Dioceses Orthodox 0 n.a. n.a.
Unitarian Universalist Association of Congregations Other Theology 0 -101 -9.4%
Wesleyan Church, The Evangelical Protestant 0 +153 157.7%
Wisconsin Evangelical Lutheran Synod Evangelical Protestant 0 +12 17.6%
American Baptist Churches in the USA Mainline Protestant -1 -856 -31.6%
Christian Churches and Churches of Christ Evangelical Protestant -1 +164 23.4%
Christian Reformed Church in North America Evangelical Protestant -1 -208 -74.6%
Conservative Baptist Association of America Evangelical Protestant -1 n.a. n.a.
Episcopal Church Mainline Protestant -1 -3,285 -16.8%
Evangelical Lutheran Church in America Mainline Protestant -1 -4,900 -20.2%
United Church of Christ Mainline Protestant -1 -884 -20.6%
Friends (Quakers) Mainline Protestant -2 +47 33.1%
United Methodist Church, The Mainline Protestant -2 -2,568 -10.3%
Independent, Charismatic Churches Evangelical Protestant -3 -3,550 -87.7%
  Totals: +35 +29,133 +3.2%

The population of this county (or equivalent) in 1990 was 1,321,864; in 2000 it was 1,419,369. The total population changed 7.4%. The adherent totals for 1990 (941,127) represent 71.2% of the 1990 population. The adherent totals for 2000 (964,721) include 68.0% of the 2000 population. The totals represent the change in groups that reported in both 1990 and 2000 only. There is sufficient data for 31 groups to calculate 1990-2000 change. These 31 groups had 916,294 adherents in 1990 and 945,427 adherents in 2000, for a change of 3.2%

Sources

The 2000 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and includes statistics for 149 religious groups, including number of churches and adherents. Dale E. Jones, Sherri Doty, Clifford Grammich, James E. Horsch, Richard Houseal, Mac Lynn, John P. Marcum, Kenneth M. Sanchagrin and Richard H. Taylor supervised the collection. These data originally appeared in Religious Congregations & Membership in the United States, 2000, published by the Glenmary Research Center.

The 1990 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 132 religious groups, including number of churches and adherents. Martin B. Bradley, Norman M. Green, Jr., Dale E. Jones, Mac Lynn, and Lou McNeil supervised the collection. These data originally appeared in Churches and Church Membership in the United States, 1990, published by the Glenmary Research Center.

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