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Hampden County (Massachusetts)

Religious Traditions, 2010

19,438 2,491 21,962 223,685 3,406 9,140 183,368
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 75 239,076 524.03
United Church of Christ Mainline Protestant Presbyterian-Reformed 32 11,284 24.73
Jewish Other Judaism 10 10,600 23.23
American Baptist Churches in the USA Mainline Protestant Baptist 19 5,551 12.17
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 14 4,539 9.95
United Methodist Church, The Mainline Protestant Methodist/Pietist 17 4,377 9.59
Assemblies of God Evangelical Protestant Pentecostal 13 2,935 6.43
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 4 2,934 6.43
Evangelical Lutheran Church in America Mainline Protestant Lutheran 5 2,311 5.07
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 4 2,053 4.50
Muslim Estimate Other Other Groups 2 1,218 2.67
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 2 1,075 2.36
Seventh-day Adventist Church Evangelical Protestant Adventist 4 930 2.04
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 2 772 1.69
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 5 699 1.53
Salvation Army Evangelical Protestant Holiness 2 479 1.05
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 3 428 0.94
Armenian Church of North America (Catholicosate of Etchmiadzin) Orthodox Eastern Liturgical (Orthodox) 1 400 0.88
Unitarian Universalist Association of Congregations Other Liberal 3 388 0.85
Southern Baptist Convention Evangelical Protestant Baptist 4 384 0.84
Conservative Baptist Association of America Evangelical Protestant Baptist 1 350 0.77
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 1 313 0.69
Armenian Apostolic Church of America (Catholicosate of Cilicia) Orthodox Eastern Liturgical (Orthodox) 1 280 0.61
Bahá'í Other Other Groups 3 268 0.59
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 260 0.57
Church of the Nazarene Evangelical Protestant Holiness 2 249 0.55
Churches of Christ Evangelical Protestant Baptist 2 245 0.54
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 228 0.50
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 2 181 0.40
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 150 0.33
Christian and Missionary Alliance, The Evangelical Protestant Holiness 2 115 0.25
Wesleyan Church, The Evangelical Protestant Holiness 1 107 0.23
Church of God of Prophecy Evangelical Protestant Pentecostal 1 103 0.23
General Association of Regular Baptist Churches Evangelical Protestant Baptist 1 86 0.19
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 1 54 0.12
Mennonite; Other Groups Evangelical Protestant European Free-Church 1 14 0.03
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 1 0 0.00
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 1 --- ---
Reformed Baptist Churches Evangelical Protestant Baptist 1 --- ---
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Totals: 247 295,436  

The population of Hampden County, Massachusetts was 456,228 in 2000; in 1990 it was 456,310. The total population changed 0.0%. The adherent totals of the religious groups listed above (295,436) included 64.8% of the total population in 2000.

* 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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