Colorado

Religious Traditions, 2010

601,009	13,019	246,706	11,213	811,630	218,705	3,126,914
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	289	403,399	139.6
United Methodist Church, The	Mainline Protestant	Methodist/Pietist	224	99,445	34.4
Southern Baptist Convention	Evangelical Protestant	Baptist	156	66,560	23.0
Presbyterian Church (U.S.A.)	Mainline Protestant	Presbyterian-Reformed	130	56,612	19.6
Evangelical Lutheran Church in America	Mainline Protestant	Lutheran	100	54,680	18.9
Church of Jesus Christ of Latter-day Saints, The	Other	Latter-day Saints	132	51,884	18.0
Lutheran Church--Missouri Synod	Evangelical Protestant	Lutheran	100	46,694	16.2
Episcopal Church	Mainline Protestant	Episcopalianism/Anglicanism	108	39,167	13.6
American Baptist Churches in the USA	Mainline Protestant	Baptist	83	29,041	10.0
Assemblies of God	Evangelical Protestant	Pentecostal	147	28,786	10.0
United Church of Christ	Mainline Protestant	Presbyterian-Reformed	76	22,322	7.7
Christian Church (Disciples of Christ)	Mainline Protestant	Baptist	47	19,857	6.9
Church of the Nazarene	Evangelical Protestant	Holiness	84	19,083	6.6
Churches of Christ	Evangelical Protestant	Baptist	133	15,573	5.4
Seventh-day Adventist Church	Evangelical Protestant	Adventist	72	15,552	5.4
Christian Churches and Churches of Christ	Evangelical Protestant	Baptist	61	14,630	5.1
Conservative Baptist Association of America	Evangelical Protestant	Baptist	48	13,266	4.6
Jewish	Other	Judaism	10	5,748	2.0
Foursquare Gospel, International Church of the	Evangelical Protestant	Pentecostal	41	5,595	1.9
Converge Worldwide/Baptist General Conference	Evangelical Protestant	Baptist	22	5,436	1.9
Church of God (Anderson, Indiana)	Evangelical Protestant	Holiness	25	5,061	1.8
Christian Reformed Church in North America	Evangelical Protestant	Presbyterian-Reformed	17	4,613	1.6
Evangelical Free Church of America, The	Evangelical Protestant	Methodist/Pietist	21	3,635	1.3
Reformed Church in America	Mainline Protestant	Presbyterian-Reformed	8	2,578	0.9
Unitarian Universalist Association of Congregations	Other	Liberal	13	2,465	0.9
Christian Brethren	Evangelical Protestant	Ind. Fundamentalist	22	2,145	0.7
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	17	2,087	0.7
Free Methodist Church of North America	Evangelical Protestant	Holiness	11	1,966	0.7
Church of God (Cleveland, Tennessee)	Evangelical Protestant	Pentecostal	20	1,851	0.6
Friends (Quakers)	Mainline Protestant	European Free-Church	22	1,781	0.6
Evangelical Covenant Church, The	Evangelical Protestant	Methodist/Pietist	8	1,698	0.6
Salvation Army	Evangelical Protestant	Holiness	9	1,642	0.6
Mennonite Church	Evangelical Protestant	European Free-Church	15	1,382	0.5
Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	4	1,304	0.5
Church of the Brethren	Evangelical Protestant	European Free-Church	9	1,207	0.4
Open Bible Standard Churches, Inc.	Evangelical Protestant	Pentecostal	4	1,163	0.4
International Pentecostal Holiness Church	Evangelical Protestant	Pentecostal	24	1,090	0.4
Christian and Missionary Alliance, The	Evangelical Protestant	Holiness	5	1,064	0.4
American Baptist Association, The	Evangelical Protestant	Baptist	6	850	0.3
Metropolitan Community Churches, Universal Fellowship of	Mainline Protestant	Other Groups	3	585	0.2
U.S. Mennonite Brethren	Evangelical Protestant	European Free-Church	4	560	0.2
North American Baptist Conference	Evangelical Protestant	Baptist	5	416	0.1
African Methodist Episcopal Zion Church	Black Protestant	Methodist/Pietist	2	336	0.1
Mennonite Church, The General Conference	Evangelical Protestant	European Free-Church	2	319	0.1
Grace Brethren Churches, Fellowship of	Mainline Protestant	European Free-Church	3	298	0.1
Berean Fundamental Church	Evangelical Protestant	Ind. Fundamentalist	6	287	0.1
Seventh Day Baptist General Conference, USA and Canada	Evangelical Protestant	Baptist	2	273	0.1
Latvian Evangelical Lutheran Church in America	Mainline Protestant	Lutheran	2	264	0.1
Orthodox Presbyterian Church, The	Evangelical Protestant	Presbyterian-Reformed	3	257	0.1
National Association of Congregational Christian Churches	Mainline Protestant	Presbyterian-Reformed	2	188	0.1
Protestant Reformed Churches in America	Evangelical Protestant	Presbyterian-Reformed	1	173	0.1
Church of God (Seventh Day)	Evangelical Protestant	Adventist	2	157	0.1
Church of the Lutheran Confession	Evangelical Protestant	Lutheran	3	144	0.0
Reformed Presbyterian Church of North America	Evangelical Protestant	Presbyterian-Reformed	2	139	0.0
Brethren In Christ Church	Evangelical Protestant	European Free-Church	1	86	0.0
Apostolic Christian Churches (Nazarene)	Evangelical Protestant	European Free-Church	1	77	0.0
Baptist Missionary Association of America	Evangelical Protestant	Baptist	1	74	0.0
Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	1	72	0.0
Missionary Church, The	Evangelical Protestant	Holiness	2	41	0.0
Church of the Lutheran Brethren of America	Evangelical Protestant	Lutheran	1	33	0.0
General Church of the New Jerusalem	Other	Spiritualist	1	18	0.0
Conservative Congregational Christian Conference	Evangelical Protestant	Presbyterian-Reformed	---	---	---
		Totals:	2,373	1,057,709

The population of Colorado was 2,889,964 in 1980. The adherent totals of the religious groups listed above (1,057,709) included 36.6% of the total population in 1980.

^* 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.