County Membership Report
 Maps and Reports > Select Counties >
Search Maps & Reports:

Mercer County (New Jersey)

Religious Traditions, 2010

17,274 5,146 29,638 121,650 1,960 17,115 173,730
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
American Baptist Churches in the USA Mainline Protestant Baptist 19 6,247 17.81
Assemblies of God Evangelical Protestant Pentecostal 12 1,938 5.53
Bahá'í Other Other Groups 4 199 0.57
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 1 --- ---
Catholic Church Catholic Catholicism 35 109,306 311.63
Christian and Missionary Alliance, The Evangelical Protestant Holiness 3 260 0.74
Christian Churches and Churches of Christ Evangelical Protestant Baptist 1 277 0.79
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 2 160 0.46
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 5 1,032 2.94
Church of God of Prophecy Evangelical Protestant Pentecostal 1 56 0.16
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 2 781 2.23
Church of the Nazarene Evangelical Protestant Holiness 2 233 0.66
Churches of Christ Evangelical Protestant Baptist 3 560 1.60
Conservative Baptist Association of America Evangelical Protestant Baptist 4 525 1.50
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 11 6,827 19.46
Evangelical Lutheran Church in America Mainline Protestant Lutheran 11 4,093 11.67
Friends (Quakers) Mainline Protestant European Free-Church 3 388 1.11
General Association of Regular Baptist Churches Evangelical Protestant Baptist 1 475 1.35
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 1,407 4.01
Hindus Other Other Groups 1 --- ---
Independent, Non-Charismatic Churches Evangelical Protestant
1 400 1.14
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 2 382 1.09
Jewish Other Judaism 16 9,100 25.94
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 4 924 2.63
Mennonite Church USA Evangelical Protestant European Free-Church 2 136 0.39
Muslim Estimate Other Other Groups 4 11,673 33.28
National Primitive Baptist Convention, USA Evangelical Protestant Baptist 1 393 1.12
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 233 0.66
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 1 62 0.18
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 21 9,904 28.24
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 2 506 1.44
Reformed Church in America Mainline Protestant Presbyterian-Reformed 1 190 0.54
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Salvation Army Evangelical Protestant Holiness 2 187 0.53
Seventh-day Adventist Church Evangelical Protestant Adventist 7 1,242 3.54
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) 2 1,215 3.46
Unitarian Universalist Association of Congregations Other Liberal 3 876 2.50
United Church of Christ Mainline Protestant Presbyterian-Reformed 1 132 0.38
United Methodist Church, The Mainline Protestant Methodist/Pietist 19 5,732 16.34
Totals: 213 178,051  

The population of Mercer County, New Jersey was 350,761 in 2000; in 1990 it was 325,824. The total population changed 7.7%. The adherent totals of the religious groups listed above (178,051) included 50.8% 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.

Bookmark and Share