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	298	752,505	174.9
Church of Jesus Christ of Latter-day Saints, The	Other	Latter-day Saints	243	92,326	21.5
Southern Baptist Convention	Evangelical Protestant	Baptist	243	85,083	19.8
United Methodist Church, The	Mainline Protestant	Methodist/Pietist	222	77,286	18.0
Jewish	Other	Judaism	41	72,000	16.7
Evangelical Lutheran Church in America	Mainline Protestant	Lutheran	120	66,877	15.5
Independent, Charismatic Churches	Evangelical Protestant	Pentecostal	13	54,575	12.7
Lutheran Church--Missouri Synod	Evangelical Protestant	Lutheran	121	47,283	11.0
Presbyterian Church (U.S.A.)	Mainline Protestant	Presbyterian-Reformed	124	46,454	10.8
Assemblies of God	Evangelical Protestant	Pentecostal	180	41,123	9.6
Episcopal Church	Mainline Protestant	Episcopalianism/Anglicanism	102	34,942	8.1
American Baptist Churches in the USA	Mainline Protestant	Baptist	77	27,153	6.3
Christian Churches and Churches of Christ	Evangelical Protestant	Baptist	80	25,105	5.8
Independent, Non-Charismatic Churches	Evangelical Protestant	----	19	25,025	5.8
United Church of Christ	Mainline Protestant	Presbyterian-Reformed	63	20,919	4.9
Church of the Nazarene	Evangelical Protestant	Holiness	90	16,814	3.9
Seventh-day Adventist Church	Evangelical Protestant	Adventist	88	16,634	3.9
Churches of Christ	Evangelical Protestant	Baptist	149	16,356	3.8
Evangelical Free Church of America, The	Evangelical Protestant	Methodist/Pietist	65	14,996	3.5
Christian Church (Disciples of Christ)	Mainline Protestant	Baptist	39	14,973	3.5
Muslim Estimate	Other	Other Groups	12	14,855	3.5
Evangelical Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	20	14,718	3.4
Conservative Baptist Association of America	Evangelical Protestant	Baptist	51	10,488	2.4
Foursquare Gospel, International Church of the	Evangelical Protestant	Pentecostal	57	9,880	2.3
Vineyard USA	Evangelical Protestant	Pentecostal	21	8,699	2.0
Converge Worldwide/Baptist General Conference	Evangelical Protestant	Baptist	31	8,113	1.9
New Testament Association of Independent Baptist Churches and other Fundamental Bapti	Evangelical Protestant	Baptist	57	7,810	1.8
Evangelical Covenant Church, The	Evangelical Protestant	Methodist/Pietist	18	6,773	1.6
Christian Reformed Church in North America	Evangelical Protestant	Presbyterian-Reformed	19	5,698	1.3
Church of God (Cleveland, Tennessee)	Evangelical Protestant	Pentecostal	26	4,823	1.1
Salvation Army	Evangelical Protestant	Holiness	17	4,493	1.0
Wesleyan Church, The	Evangelical Protestant	Holiness	17	4,489	1.0
Greek Orthodox Archdiocese of America	Orthodox	Eastern Liturgical (Orthodox)	7	4,413	1.0
Wisconsin Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	27	3,740	0.9
Unitarian Universalist Association of Congregations	Other	Liberal	18	3,559	0.8
Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	15	3,460	0.8
Reformed Church in America	Mainline Protestant	Presbyterian-Reformed	8	3,026	0.7
Christian and Missionary Alliance, The	Evangelical Protestant	Holiness	18	2,898	0.7
Bahá'í	Other	Other Groups	30	2,420	0.6
Community of Christ	Other	Latter-day Saints	20	2,153	0.5
Mennonite Church USA	Evangelical Protestant	European Free-Church	20	1,982	0.5
Church of God (Anderson, Indiana)	Evangelical Protestant	Holiness	25	1,688	0.4
Conservative Congregational Christian Conference	Evangelical Protestant	Presbyterian-Reformed	8	1,669	0.4
International Churches of Christ	Evangelical Protestant	Baptist	2	1,624	0.4
General Association of Regular Baptist Churches	Evangelical Protestant	Baptist	14	1,606	0.4
Friends (Quakers)	Mainline Protestant	European Free-Church	31	1,574	0.4
International Pentecostal Holiness Church	Evangelical Protestant	Pentecostal	20	1,301	0.3
Free Methodist Church of North America	Evangelical Protestant	Holiness	13	1,130	0.3
Congregational Christian Churches, Additional (not part of any national CCC body)	Mainline Protestant	Presbyterian-Reformed	1	1,039	0.2
Church of the Brethren	Evangelical Protestant	European Free-Church	10	847	0.2
Antiochian Orthodox Christian Archdiocese of North America, The	Orthodox	Eastern Liturgical (Orthodox)	6	796	0.2
International Council of Community Churches	Mainline Protestant	Presbyterian-Reformed	2	763	0.2
Orthodox Church in America	Orthodox	Eastern Liturgical (Orthodox)	7	662	0.2
U.S. Mennonite Brethren	Evangelical Protestant	European Free-Church	4	588	0.1
Metropolitan Community Churches, Universal Fellowship of	Mainline Protestant	Other Groups	5	587	0.1
American Baptist Association, The	Evangelical Protestant	Baptist	11	509	0.1
North American Baptist Conference	Evangelical Protestant	Baptist	5	424	0.1
Church of God of Prophecy	Evangelical Protestant	Pentecostal	13	353	0.1
Pentecostal Church of God	Evangelical Protestant	Pentecostal	8	339	0.1
Baptist Missionary Association of America	Evangelical Protestant	Baptist	3	310	0.1
Orthodox Presbyterian Church, The	Evangelical Protestant	Presbyterian-Reformed	4	282	0.1
Apostolic Christian Churches (Nazarene)	Evangelical Protestant	European Free-Church	2	281	0.1
National Association of Free Will Baptists	Evangelical Protestant	Baptist	7	263	0.1
Serbian Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	1	250	0.1
Association of Free Lutheran Congregations	Evangelical Protestant	Lutheran	3	230	0.1
Missionary Church, The	Evangelical Protestant	Holiness	1	223	0.1
Church of God in Christ, Mennonite	Evangelical Protestant	European Free-Church	2	172	0.0
National Association of Congregational Christian Churches	Mainline Protestant	Presbyterian-Reformed	3	147	0.0
Mennonite; Other Groups	Evangelical Protestant	European Free-Church	3	143	0.0
United Reformed Churches in North America	Evangelical Protestant	Presbyterian-Reformed	1	143	0.0
Reformed Church in the United States	Evangelical Protestant	Presbyterian-Reformed	2	109	0.0
Apostolic Christian Church of America, Inc.	Evangelical Protestant	European Free-Church	1	90	0.0
Malankara Orthodox Syrian Church	Orthodox	Eastern Liturgical (Orthodox)	1	75	0.0
Amish; Other Groups	Evangelical Protestant	European Free-Church	1	37	0.0
Associate Reformed Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	1	32	0.0
Brethren In Christ Church	Evangelical Protestant	European Free-Church	1	24	0.0
Protestant Reformed Churches in America	Evangelical Protestant	Presbyterian-Reformed	1	24	0.0
Church of God General Conference	Evangelical Protestant	Adventist	1	6	0.0
"Old" Missionary Baptists Associations	Evangelical Protestant	Baptist	---	---	---
African Methodist Episcopal Church	Black Protestant	Methodist/Pietist	---	---	---
African Methodist Episcopal Zion Church	Black Protestant	Methodist/Pietist	---	---	---
American Association of Lutheran Churches	Evangelical Protestant	Lutheran	---	---	---
Amish Groups, undifferentiated*	Evangelical Protestant	European Free-Church	---	---	---
Anglican Church in North America	Evangelical Protestant	Episcopalianism/Anglicanism	---	---	---
Armenian Apostolic Church of America (Catholicosate of Cilicia)	Orthodox	Eastern Liturgical (Orthodox)	---	---	---
Association of Reformed Baptist Churches of America	Evangelical Protestant	Baptist	---	---	---
Brethren Church, The (Ashland, Ohio)	Evangelical Protestant	European Free-Church	1	0	---
Buddhists	Other	Other Groups	72	---	---
Calvary Chapel Fellowship Churches	Evangelical Protestant	Pentecostal	21	---	---
Canadian and American Reformed Churches	Evangelical Protestant	Presbyterian-Reformed	---	---	---
Christian Brethren	Evangelical Protestant	Ind. Fundamentalist	---	---	---
Christian Methodist Episcopal Church	Black Protestant	Methodist/Pietist	---	---	---
Church of Christ (Holiness), U.S.A	Evangelical Protestant	Holiness	---	---	---
Church of Christ, Scientist	Other	Christian Science	---	---	---
Church of God (Seventh Day)	Evangelical Protestant	Adventist	---	---	---
Church of God in Christ	Black Protestant	Pentecostal	---	---	---
Church of the Lutheran Brethren of America	Evangelical Protestant	Lutheran	---	---	---
Church of the Lutheran Confession	Evangelical Protestant	Lutheran	---	---	---
Communion of Reformed Evangelical Churches	Evangelical Protestant	Presbyterian-Reformed	---	---	---
Conservative Judaism	Other	Judaism	---	---	---
Conservative Yearly Meetings of Friends*	Evangelical Protestant	European Free-Church	---	---	---
Coptic Orthodox Church	Orthodox	Eastern Liturgical (Orthodox)	---	---	---
Eritrean Orthodox	Orthodox	Eastern Liturgical (Orthodox)	---	---	---
Ethiopian Orthodox	Orthodox	Eastern Liturgical (Orthodox)	---	---	---
Evangelical Friends Church International*	Evangelical Protestant	European Free-Church	---	---	---
Evangelical Lutheran Synod	Evangelical Protestant	Lutheran	---	---	---
Friends General Conference *	Mainline Protestant	European Free-Church	---	---	---
Full Gospel Baptist Church Fellowship	Black Protestant	Baptist	---	---	---
Fundamental Baptist Fellowship	Evangelical Protestant	Baptist	---	---	---
Grace Brethren Churches, Fellowship of	Mainline Protestant	European Free-Church	---	---	---
Grace Gospel Fellowship	Evangelical Protestant	Ind. Fundamentalist	---	---	---
Hindus	Other	Other Groups	7	---	---
Hungarian Reformed Churches (Additional)	Mainline Protestant	Presbyterian-Reformed	---	---	---
Independent Baptist Fellowship International	Evangelical Protestant	Baptist	---	---	---
Independent Fundamental Churches of America	Evangelical Protestant	Ind. Fundamentalist	---	---	---
Jain	Other	Other Groups	1	---	---
Jehovah's Witnesses	Other	Adventist	---	---	---
Korean Presbyterian Church Abroad	Evangelical Protestant	Presbyterian-Reformed	---	---	---
Korean Presbyterian Church in America	Evangelical Protestant	Presbyterian-Reformed	---	---	---
Korean-American Presbyterian Church	Evangelical Protestant	Presbyterian-Reformed	---	---	---
Lutheran Congregations in Mission for Christ	Evangelical Protestant	Lutheran	---	---	---
Malankara Archdiocese of the Syrian Orthodox Church in North America	Orthodox	Eastern Liturgical (Orthodox)	---	---	---
National Baptist Convention of America, Inc.	Black Protestant	Baptist	---	---	---
National Baptist Convention, USA, Inc.	Black Protestant	Baptist	---	---	---
National Missionary Baptist Convention, Inc.	Black Protestant	Baptist	---	---	---
National Spiritualist Association of Churches	Other	Spiritualist	---	---	---
New Apostolic Church of North America, National Organization of the	Other	Other Groups	---	---	---
New Testament Association of Independent Baptist Churches	Evangelical Protestant	Baptist	---	---	---
Non-denominational	Evangelical Protestant	----	---	---	---
North American Lutheran Church	Evangelical Protestant	Lutheran	---	---	---
Open Bible Standard Churches, Inc.	Evangelical Protestant	Pentecostal	---	---	---
Orthodox Judaism	Other	Judaism	---	---	---
Pillar of Fire	Evangelical Protestant	Holiness	---	---	---
Polish National Catholic Church	Catholic	Catholicism	---	---	---
Primitive Baptist Church, The	Evangelical Protestant	Baptist	4	---	---
Reconstructionist Judaism	Other	Judaism	---	---	---
Reform Judaism	Other	Judaism	---	---	---
Reformed Baptist Churches	Evangelical Protestant	Baptist	1	---	---
Reformed Presbyterian Church of North America	Evangelical Protestant	Presbyterian-Reformed	---	---	---
Russian Orthodox Church Outside of Russia	Orthodox	Eastern Liturgical (Orthodox)	1	---	---
Seventh Day Baptist General Conference, USA and Canada	Evangelical Protestant	Baptist	---	---	---
Sikh	Other	Other Groups	5	---	---
Southwide Baptist Fellowship	Evangelical Protestant	Baptist	1	---	---
Tampico Amish Mennonite*	Evangelical Protestant	European Free-Church	---	---	---
Tao	Other	Other Groups	3	---	---
Ukrainian Orthodox Church of the USA	Orthodox	Eastern Liturgical (Orthodox)	---	---	---
Union of Messianic Jewish Congregations	Other	Judaism	---	---	---
United Pentecostal Church International	Evangelical Protestant	Pentecostal	---	---	---
Unity Churches, Association of	Other	Other Groups	---	---	---
Zoroastrian	Other	Other Groups	1	---	---
		Totals:	3,228	1,697,259

The population of Colorado was 4,301,261 in 2000; in 1990 it was 3,294,394. The total population changed 30.6%. The adherent totals of the religious groups listed above (1,697,259) included 39.5% 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 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.