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Yellowstone County (Montana)

Religious Traditions, 2010

20,845 123 11,920 17,155 100 7,761 90,068
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 Association, The Evangelical Protestant Baptist 1 35 0.27
American Baptist Churches in the USA Mainline Protestant Baptist 2 376 2.91
Assemblies of God Evangelical Protestant Pentecostal 6 1,197 9.25
Bahá'í Other Other Groups 1 112 0.87
Buddhists Other Other Groups 1 --- ---
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 1 --- ---
Catholic Church Catholic Catholicism 11 22,744 175.83
Christian and Missionary Alliance, The Evangelical Protestant Holiness 2 345 2.67
Christian Church (Disciples of Christ) Mainline Protestant Baptist 2 542 4.19
Christian Churches and Churches of Christ Evangelical Protestant Baptist 2 199 1.54
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 1 0 0.00
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 1 19 0.15
Church of God of Prophecy Evangelical Protestant Pentecostal 2 58 0.45
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 19 5,292 40.91
Church of the Nazarene Evangelical Protestant Holiness 3 319 2.47
Churches of Christ Evangelical Protestant Baptist 2 340 2.63
Community of Christ Other Latter-day Saints 1 96 0.74
Conservative Baptist Association of America Evangelical Protestant Baptist 1 150 1.16
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 1 362 2.80
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 4 1,043 8.06
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 60 0.46
Evangelical Lutheran Church in America Mainline Protestant Lutheran 11 7,584 58.63
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 5,099 39.42
Friends (Quakers) Mainline Protestant European Free-Church 1 27 0.21
Hutterian Brethren Evangelical Protestant Communal 1 100 0.77
Independent, Non-Charismatic Churches Evangelical Protestant
1 325 2.51
Jewish Other Judaism 1 300 2.32
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 7 3,098 23.95
Muslim Estimate Other Other Groups 1 288 2.23
National Association of Free Will Baptists Evangelical Protestant Baptist 2 20 0.15
New Testament Association of Independent Baptist Churches and other Fundamental Bapti Evangelical Protestant Baptist 3 509 3.93
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 2 103 0.80
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 1 295 2.28
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 2 803 6.21
Salvation Army Evangelical Protestant Holiness 1 214 1.65
Seventh-day Adventist Church Evangelical Protestant Adventist 4 527 4.07
Southern Baptist Convention Evangelical Protestant Baptist 15 3,685 28.49
Unitarian Universalist Association of Congregations Other Liberal 1 99 0.77
United Church of Christ Mainline Protestant Presbyterian-Reformed 7 2,595 20.06
United Methodist Church, The Mainline Protestant Methodist/Pietist 7 3,072 23.75
Vineyard USA Evangelical Protestant Pentecostal 1 162 1.25
Wesleyan Church, The Evangelical Protestant Holiness 3 359 2.78
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 278 2.15
Totals: 139 62,831  

The population of Yellowstone County, Montana was 129,352 in 2000; in 1990 it was 113,419. The total population changed 14.0%. The adherent totals of the religious groups listed above (62,831) included 48.6% 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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