Colorado Genealogy on the Internet

Online Colorado Genealogy Records and Indexes

Statewide Records

Colorado Vital Records
- Online Colorado Death Records Indexes, Cemetery Burials, Probate Indexes and Obituaries
- Colorado Marriage Records Index 1975-2004 (at Archives.com/requires payment)
- Colorado Statewide Marriage Index 1900-1939 at FamilySearch browsable images
- Colorado Divorce Records Index 1890-1939

Online Colorado Naturalization Records Indexes

Colorado Census Records and Indexes Online...
- Colorado 1870 Census Index (free)
- 1880 Every Name Census Index and Images at Ancestry for Colorado and All States (index is free - viewing images requires payment)
- Colorado 1885 State Census Images and Index at FamilySearch (free)
- 1940 U.S. Census Records and Index at Ancestry for Colorado and All States (free with registration)
- Colorado 1940 Census Images and Index at FamilySearch (free)
- Also see the Ancestry section below...

Ancestry's Online Colorado Genealogy Databases (requires subscription) includes...
- Colorado Census Records 1860-1940:
  - 1860 Every Name Census Index and Images Colorado (not yet a territory) is included as part of Kansas, Nebraska, New Mexico and Utah Territories (requires payment)
  - 1870 Every Name Census Index and Images
  - 1880 Every Name Census Index and Images
  - 1885 Colorado State Census Index and Images
  - 1900 Every Name Census Index and Images
  - 1910 Every Name Census Index and Images
  - 1920 Every Name Census Index and Images
  - 1930 Every Name Census Index and Images
  - 1940 U.S. Census Records and Index

Colorado Military Records...
- Colorado Veterans' Grave Registrations 1862-1949
- Colorado Soldiers in WWI, 1917-1918 (at Ancestry/requires payment)
- Veterans Affairs Burial Search (includes Fort Logan National Cemetery in Denver and Fort Lyon National Cemetery in Fort Lyon)
- Also See... Online Military Indexes, Records and Rosters of Soldiers

Colorado Unclaimed Property Database

Colorado Genealogy Data Files from the Denver Public Library

Colorado Genealogy Records by County

Colorado Historical Records Index from the Colorado State Archives; includes...
- Boulder County Birth Index 1892-1906
- Denver (City) Birth Index 1875-1906
- Elbert County Birth Index 1869-1906
- Kit Carson County Birth Report Register 1892-1907
- Also has probate records, wills, military indexes, marriage and divorce records, and other items for some Colorado counties

Colorado Marriages, 1859-1900 (Arapahoe, Boulder & Mesa Counties) (at Ancestry/requires payment); includes...
- Arapahoe County Marriages 1859-1901: including territory that became Adams, Denver and other counties
- Boulder County Marriages, 27 June 1864-1900
- Mesa County Marriages 1883-1900

Arapahoe County (also see the Denver section below)
- Arapahoe County (Includes City of Denver) Marriages 1861-1868
- Arapahoe County, Colorado Marriage Index 1940-1965 also has other indexes
- 1885 Colorado State Census - Arapahoe County includes the present Denver, Arapahoe and Adams counties
- Arapaphoe County Voter Registrations 1893-1905
- Arapahoe County Hospital Records 1895-1899 (this hospital was later called Denver General Hospital; today it is Denver Health Medical Center)
Boulder County Marriages 1860-1900
Clear Creek Pioneers Index
Denver City and County Records also see Arapahoe County above
- Online Denver Property Records Data
- Denver Public Library: Buildings, Neighborhoods and Communities includes...
  - Sanborn Historical Insurance Maps
  - Denver City Directories and Householder Directories (for assorted years 1873-1937)
  - Denver Assesor Records (indexes for City of Denver Grantor/Grantee information, late 1800s-1950s)
- Denver City Directories Online...
  - Denver City Directories (includes the 1876 city directory and parts of others)
  - 1887 Denver City Directory (PDF files)
  - Highlights of the 1866 City of Denver Business Directory
  - 1866 History of Denver with Business Directory online transcription
  - Also see the Denver Public Library link above
- Denver Catholic Register Archives
- Denver Land Office Records, 1862-1908 (at Ancestry/requires payment)
Douglas County Marriage Search 1874-current
El Paso County: Colorado Springs City Directories, 1879-1922
Foothills Genealogical Society Online Databases (for Clear Creek, Gilpin, Jefferson and Park Counties) includes obituaries, World War One draft cards, census records and naturalization records
Gilpin County Marriage Index 1864-1944
Grand County Marriage Index 1874-1974
La Plata County Marriage Records Index 1877-1959
Lake County: Leadville, Colorado City Directories, 1882-1890 (at Ancestry/requires payment)
Larimer County...
- Larimer County and Fort Collins City Directories 1902-2005 (not all years included)
- Larimer County: Fort Collins Public Library History Connection Search Engine
Ouray County Marriage License Index 1877-2010
Pitkin County Marriage Records 1882-1930

Ordering Vital Records

Obtaining Colorado Birth, Marriage, Divorce and Death Records by Mail (fees and restrictions apply)

Archives, Libraries, Societies and Miscellaneous

For information on the Denver Public Library, Colorado State Archives, Denver National Archives Branch and Denver Area Family History Centers see: Denver Area and Colorado Genealogy Resources
Bemis Public Library Genealogy (Littleton, Colorado) - genealogy information page
National Society of Hispanic Genealogy located in Colorado
Colorado Adoption Search and Reunion Resources [on this website]

Nearby (New Mexico)...

New Mexico Genealogy Resources

More Online Genealogy Records and Databases

Online Genealogy Records and Resources vital records, ship passenger lists, military records, naturalization indexes and more

Online Genealogy Records and Resources