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Delta County (Colorado)

Religious Traditions, 2010

4,238 1,615 3,630 96 1,676 19,697
Evangelical 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 3 573 27.31
Assemblies of God Evangelical Protestant Pentecostal 4 725 34.56
Catholic Church Catholic Catholicism 4 3,207 152.86
Christian Churches and Churches of Christ Evangelical Protestant Baptist 2 402 19.16
Church of Christ, Scientist Other Christian Science 1 --- ---
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 2 102 4.86
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 3 910 43.37
Church of the Nazarene Evangelical Protestant Holiness 3 198 9.44
Churches of Christ Evangelical Protestant Baptist 6 257 12.25
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 2 125 5.96
Evangelical Lutheran Church in America Mainline Protestant Lutheran 1 67 3.19
Friends (Quakers) Mainline Protestant European Free-Church 1 165 7.86
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 2 --- ---
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 1 10 0.48
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 2 276 13.16
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 1 --- ---
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 2 337 16.06
Seventh-day Adventist Church Evangelical Protestant Adventist 3 306 14.59
Southern Baptist Convention Evangelical Protestant Baptist 4 825 39.32
United Methodist Church, The Mainline Protestant Methodist/Pietist 5 921 43.90
Totals: 52 9,406  

The population of Delta County, Colorado was 20,980 in 1990; in 1980 it was 21,225. The total population changed -1.2%. The adherent totals of the religious groups listed above (9,406) included 44.8% of the total population in 1990.

* 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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