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Suffolk County, Massachusetts

Religious Traditions, 2010

48,562 4,176 20,380 7,693 332,744 29,094 279,374
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 56 332,744 460.8
Non-denominational Evangelical Protestant
----
39 17,115 23.7
American Baptist Churches in the USA Mainline Protestant Baptist 40 8,358 11.6
Muslim Estimate Other Other Groups 11 7,646 10.6
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 21 7,259 10.1
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 3 6,890 9.5
Unitarian Universalist Association of Congregations Other Liberal 9 5,420 7.5
Seventh-day Adventist Church Evangelical Protestant Adventist 18 5,337 7.4
Southern Baptist Convention Evangelical Protestant Baptist 31 4,652 6.4
Assemblies of God Evangelical Protestant Pentecostal 15 4,174 5.8
Buddhism, Mahayana Other Other Groups 7 4,148 5.7
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 5 3,518 4.9
Reform Judaism Other Judaism 1 2,911 4.0
United Church of Christ Mainline Protestant Presbyterian-Reformed 16 2,293 3.2
Hindu, Indian-American Hindu Temple Assoc. Other Other Groups 4 2,201 3.0
African Methodist Episcopal Church Black Protestant Methodist/Pietist 6 2,082 2.9
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 1 2,000 2.8
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 5 1,903 2.6
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 10 1,777 2.5
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 2 1,609 2.2
United Methodist Church, The Mainline Protestant Methodist/Pietist 11 1,604 2.2
Orthodox Judaism Other Judaism 7 1,480 2.0
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox Eastern Liturgical (Orthodox) 1 1,250 1.7
Salvation Army Evangelical Protestant Holiness 6 1,216 1.7
Church of God in Christ Black Protestant Pentecostal 7 995 1.4
Church of the Nazarene Evangelical Protestant Holiness 7 856 1.2
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 2 750 1.0
Holy Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 2 720 1.0
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 2 578 0.8
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 2 570 0.8
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 6 565 0.8
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 2 501 0.7
International Churches of Christ Evangelical Protestant Baptist 1 494 0.7
Christian and Missionary Alliance, The Evangelical Protestant Holiness 4 493 0.7
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 2 468 0.6
Reconstructionist Judaism Other Judaism 1 459 0.6
Churches of Christ Evangelical Protestant Baptist 3 445 0.6
Syriac Orthodox Church of Antioch Orthodox Eastern Liturgical (Orthodox) 1 400 0.6
Buddhism, Theravada Other Other Groups 1 396 0.5
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 2 395 0.5
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 3 373 0.5
Albanian Orthodox Diocese of America Orthodox Eastern Liturgical (Orthodox) 1 350 0.5
National Missionary Baptist Convention, Inc. Black Protestant Baptist 2 347 0.5
Church of God of Prophecy Evangelical Protestant Pentecostal 3 314 0.4
Missionary Church, The Evangelical Protestant Holiness 4 312 0.4
Bahá'í Other Other Groups 1 310 0.4
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 2 267 0.4
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) 1 200 0.3
Evangelical Lutheran Church in America Mainline Protestant Lutheran 3 194 0.3
Free Methodist Church of North America Evangelical Protestant Holiness 3 179 0.2
Conservative Judaism Other Judaism 1 176 0.2
National Baptist Convention, USA, Inc. Black Protestant Baptist 1 174 0.2
Hindu, Post Renaissance Other Other Groups 4 160 0.2
Hindu, Renaissance Other Other Groups 3 139 0.2
Bulgarian Eastern Orthodox Diocese of the USA, Canada and Australia Orthodox Eastern Liturgical (Orthodox) 1 120 0.2
Buddhism, Vajrayana Other Other Groups 3 99 0.1
Friends General Conference and Friends United Meeting, dually aligned meetings* Mainline Protestant European Free-Church 2 84 0.1
Wesleyan Church, The Evangelical Protestant Holiness 1 82 0.1
Church of the United Brethren in Christ Evangelical Protestant Methodist/Pietist 1 43 0.1
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 1 23 0.0
Zoroastrian Other Other Groups 0 16 0.0
Hindu, Traditional Temples Other Other Groups 1 15 0.0
Christian Church (Disciples of Christ) Mainline Protestant Baptist 2 0 ---
Christian Churches and Churches of Christ Evangelical Protestant Baptist 1 0 ---
Anglican Church in North America Evangelical Protestant Episcopalianism/Anglicanism 1 --- ---
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 1 --- ---
Church of Christ, Scientist Other Christian Science 3 --- ---
Church of God (Seventh Day) Evangelical Protestant Adventist 1 --- ---
Church of Our Lord Jesus Christ of the Apostolic Faith, Inc. Black Protestant Pentecostal 2 --- ---
Churches of Christ in Christian Union Evangelical Protestant Holiness 1 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 5 --- ---
Ethiopian Orthodox Orthodox Eastern Liturgical (Orthodox) 2 --- ---
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 1 --- ---
International Fellowship of Christian Assemblies Evangelical Protestant
----
2 --- ---
Jehovah's Witnesses Other Adventist 9 --- ---
Pentecostal Fire-Baptized Holiness Church Evangelical Protestant Pentecostal 1 --- ---
United Holy Church of America, Inc. Black Protestant Pentecostal 3 --- ---
United Pentecostal Church International Evangelical Protestant Pentecostal 3 --- ---
Totals: 450 442,649  

The population of Suffolk County, Massachusetts was 722,023 in 2010; in 2000 it was 689,807. The total population changed 4.7%. The adherent totals of the religious groups listed above (442,649) included 61.3% 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.