Search Free Colorado Genealogy Records Online
Capital: Denver
Search Free Colorado Genealogy and Family History Records Online including census, cemetery, vital, military and other genealogical and historical records that can be used for your family history research.
Our Colorado genealogy and family history page is a place where you can come in and research your genealogy and family history. We also do our best to provide a history of the area, to provide you with an overview of the time in which your ancestors lived.
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Colorado History
The state was named for the Colorado River, which Spanish travelers named the Río Colorado for the ruddy (Spanish: colorado) silt the river carried from the mountains. The Territory of Colorado was organized on February 28, 1861, and on August 1, 1876, U.S. President Ulysses S. Grant signed a proclamation admitting Colorado to the Union as the 38th state. Colorado is nicknamed the "Centennial State" because it became a state 28 days after the centennial of the United States Declaration of Independence.
Colorado is bordered by Wyoming to the north, Nebraska to the northeast, Kansas to the east, Oklahoma to the southeast, New Mexico to the south, Utah to the west, and Arizona to the southwest, at the Four Corners. Colorado is noted for its vivid landscape of mountains, forests, high plains, mesas, canyons, plateaus, rivers, and desert lands.
<Free Colorado Genealogy Records Online
Colorado Cemetery Records
Colorado Census Records
Colorado Military Records
- 1883 Colorado Pensioners on the Roll
- World War II Honor List of Dead and Missing for the State of Colorado
Colorado Obituaries
Colorado Genealogy by County | |||
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County | Created | Parent County | County Seat |
Adams County | 1903 | Arapahoe | Brighton |
Alamosa County | 1913 | Costilla, Conejos | Alamosa |
Arapahoe County | 1861 | Original County | Littleton |
Archuleta County | 1885 | Conejos | Pagosa Springs |
Baca County | 1889 | Las Animas | Springfield |
Bent County | 1874 | Greenwood | Las Animas |
Boulder County | 1861 | Original County | Boulder |
Broomfield County & City | 2001 | Adams, Boulder, Jefferson, Weld | Broomfield |
Chaffee County | 1879 | Lake | Salida |
Cheyenne County | 1889 | Bent, Elbert | Cheyenne Wells |
Clear Creek County | 1861 | Original County | Georgetown |
Conejos County | 1861 | Original County | Conejos |
Costilla County | 1861 | Original County | San Luis |
Crowley County | 1911 | Bent, Otero | Ordway |
Custer County | 1877 | Fremont | Westcliffe |
Delta County | 1883 | Gunnison | Delta |
Denver County & City | 1901 | Arapahoe | Denver |
Dolores County | 1881 | Ouray | Dove Creek |
Douglas County | 1861 | Original County | Castle Rock |
Eagle County | 1883 | Summit | Eagle |
Elbert County | 1874 | Douglas, Greenwood | Kiowa |
El Paso County | 1861 | Original County | Colorado Springs |
Fremont County | 1859 | Original County | Canon City |
Garfield County | 1883 | Summit | Glenwood Springs |
Greenwood County | 1870 | Kit Carson; dissolved 1874; divided between Bent & Elbert Counties | |
Gilpin County | 1861 | Original County | Central City |
Grand County | 1874 | Summit | Hot Sulphur Springs |
Gunnison County | 1877 | Lake | Gunnison |
Hinsdale County | 1874 | Conejos | Lake City |
Huerfano County | 1861 | Original County | Walsenburg |
Jackson County | 1909 | Grand, Larimer | Walden |
Jefferson County | 1861 | Original County | Golden |
Kiowa County | 1889 | Cheyenne, Bent | Eads |
Kit Carson County | 1889 | Elbert | Burlington |
Lake County | 1861 | Original County | Leadville |
LaPlata County | 1861 | Original County | Durango |
Larimer County | 1861 | Original County | Fort Collins |
Las Animas County | 1866 | Huerfano | Trinidad |
Lincoln County | 1889 | Elbert | Hugo |
Logan County | 1887 | Weld | Sterling |
Mesa County | 1883 | Gunnison | Grand Junction |
Mineral County | 1892 | Hinsdale | Creede |
Moffat County | 1911 | Routt | Craig |
Montezuma County | 1889 | La Plata | Cortez |
Montrose County | 1883 | Gunnison | Montrose |
Morgan County | 1889 | Weld | Fort Morgan |
Otero County | 1889 | Bent | La Junta |
Ouray County | 1877 | Hinsdale, San Juan | Ouray |
Park County | 1861 | Original County | Fairplay |
Phillips County | 1889 | Logan | Holyoke |
Pitkin County | 1881 | Gunnison | Aspen |
Platte County | 1872 | Weld; dissolved 1874; reverted back to Weld County | |
Prowers County | 1889 | Bent | Lamar |
Pueblo County | 1861 | Original County | Pueblo |
Rio Blanco County | 1889 | Summit | Meeker |
Rio Grande County | 1874 | Conejos, Costilla | Del Norte |
Routt County | 1877 | Grand | Steamboat Springs |
Saguache County | 1866 | Rio Grande | Saguache |
San Juan County | 1876 | La Plata | Silverton |
San Miguel County | 1883 | Ouray | Telluride |
Sedgwick County | 1889 | Logan | Julesburg |
Summit County | 1861 | Original County | Breckenridge |
Teller County | 1899 | El Paso | Cripple Creek |
Washington County | 1887 | Weld, Arapahoe | Akron |
Weld County | 1861 | Original County | Greeley |
Yuma County | 1889 | Washington, Arapahoe | Wray |
Genealogical Research in Colorado
Colorado State Archives
1313 Sherman Street, Room 120
Denver, CO 80203-2274
Reference Desk Phone: 303-866-2358
Website: https://www.colorado.gov/pacific/archives/Genealogy
Colorado Genealogical Society
P.O. Box 9218
Denver, CO 80209-0218
Website: http://www.cogensoc.us/
Denver Public Library
Central Library
10 W. 14th Ave. Pkwy.
Denver, CO 80204
Reference Telephone: 720-865-1821
Website: https://history.denverlibrary.org/genealogy
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