Welcome to Big Horn County ...

Time Zone: Big Horn County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Hardin is the Seat for Big Horn County.

Big Horn County was founded in 1913. Big Horn was created by taking area from Rosebud and Yellowstone Counties.

From the Census Estimates for 2019, <1> Big Horn had a population of 13,319 people. This is an increase of 3.16% since the last Census (which gave a population of 12,911 people in 2010).

At the time of the 2010 Census, Big Horn represented 1.3% of the total population of Montana.

Websites of Interest ...

• Websites specific to Montana
  • Jump to Cyndi's List
  • Jump to Family Search
  • Jump to Genealogy Trails
  • Website for the Montana Historical Society

• Websites specific to Big Horn County
  • Jump to Cyndi's List
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  • Jump to Genealogy Trails

• Websites for nearby counties
  • Carbon County
    • Jump to Cyndi's List
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  • Yellowstone County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Treasure County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Rosebud County
    • Jump to Cyndi's List
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  • Powder River County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Sheridan County
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  • Big Horn County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails

• Cemetery Information and Directories
  • Cyndi's List
  • Cemeteries of Montana
  • Cemeteries of Big Horn County
  • FamilySearch.org: Cemeteries of Montana
  • Find-A-Grave: Home Page
  • Interment.net
  • Cemeteries of Montana
  • Cemeteries of Big Horn County