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Arapahoe County, Colorado
Genealogy, History & Facts

Arapahoe County, Colorado Facts

Arapahoe County

When was Arapahoe County, CO Created?
Arapahoe County was established on November 1, 1861 as one of the 17 original counties of the Territory of Colorado. The county was named for the Arapahoe County, Kansas Territory, which in turn was named for the Arapaho Nation of Native Americans..

What is the County Seat of Arapahoe County, CO?
The County Seat is located in Littleton and the county government website is

What counties are adjacent to Arapahoe County, CO?
Bordering Counties are Saguache County (north), Huerfano County (east), Costilla County (southeasat), Conejos County (southwest), Rio Grande County (west).

What cities and towns are in Arapahoe County, CO?
Cities and towns located in the County include Aurora, Bennett, Bow Mar, Centennial, Cherry Hills Village, Columbine Valley, Deer Trail, Englewood, Foxfield, Glendale, Greenwood Village, Littleton, Sheridan

Arapahoe County, CO Vital Records

Where can find Arapahoe County Birth, marriage, Divorce and Death Records?
Arapahoe County vital records can be found at the Colorado Office of Vital Records which has copies of birth, marriage, divorce and death records. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Colorado for current fees and application process.

You can search online for Arapahoe County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Colorado Birth Certificate, Marriage Verification, Divorce Verification, Death Certificate Applications to mail.

Arapahoe County, CO Census Records

What Arapahoe County, CO census records are available?
There are many types of census records for Arapahoe County guide you in researching your family tree. Federal Population Schedules are available for 1870, 1880 (free index), 1890 (fragment), 1900, 1910, 1920, 1930, 1940.

Arapahoe Co. Mortality Schedules can be acquired for 1870 and 1880. Arapahoe Co. Industry and Agriculture Schedules is available for 1870 and 1880. Arapahoe Co. Union Veterans Schedules can be acquired for 1890. There are free online and printable census forms to aid with your research.

Arapahoe County, CO Societies and Family History Resources

What genealogical and historical societies, archives, museums, associations and libraries are available for Arapahoe County, CO?
A list of Arapahoe County Historical  and Genealogical Societies, Libraries, Archives. See also list of Statewide Colorado Archives, Historical & Genealogical Societies.

Arapahoe County, CO Courthouse and Government Records

Arapahoe County Courthouse

What genealogical records can I find in the Arapahoe County Courthouse?
The below facts shows exactly what death, marriage, birth, property, wills, and court records are typically in Arapahoe County. The years listed below are the first noted records with this county. See Also Colorado Corthouse Records Research Guide.

  • Arapahoe County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 5334 S Prince Street, Littleton, CO 80166-0001
    • Phone:303.795.4200
  • Arapahoe County Clerk & Recorder is responsible for recording deeds, marriage licenses, issuing passports, titling and registering automobiles, issuing driver's licenses, registering voters, administering elections and maintaining records for the Board of County Commissioners.
    • Marriage Records: 1860–1903 
    • Land Records: 1861
  • Arapahoe County Clerk of Courts Most records for Denver prior to 1902 have been deposited with the Colorado State Archives. Early land records, surveys, post offices, and territorial government papers are extant for Arapahoe County, and some are located in both the Colorado and Kansas historical societies. However, typical county records such as probate or county court minutes do not exist for the early territorial period of the county before state formation.
    • Probate Records: 1902 
    • Court Records: 1902 
  • Alamosa County Public Health Department
    • Birth / Death Records: 1872–1902 / 1887–1902; At Colorado Department of Health, Vital Records Section.

Where can I connect with other Arapahoe County, CO Researchers through message boards and forums?

What other genealogical resources are available in Arapahoe County, CO?
The following are web links to Genealogy, Records and Resources pertaining to Arapahoe County.

Arapahoe Co. CO Books, Newspapers & Publications

Arapahoe Co. CO Birth, Marriage & Death Records

Arapahoe Co. CO Court, Probate Land and Tax Records

Arapahoe Co. CO Census Records

Arapahoe Co. CO Cemeteries & Church Records

Arapahoe Co. CO Family Websites, Pictures & Histories

Arapahoe Co. CO General and History Websites

Arapahoe Co. CO Maps, Atlases & Gazetteers

Arapahoe Co. CO Military Records

Arapahoe Co. CO Schools & Directories

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