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- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Beaverhead County is the largest county by area in the U.S. state of Montana. As of the 2020 census, the population was 9,371. Its county seat is Dillon. The county was founded in 1865.
Much of the perimeter of the county is the Continental Divide, including its entire border with the state of Idaho. The divide heads east into Montana at the county border with Ravalli County, between Lost Trail Pass and Chief Joseph Pass.
Timeline
Date | Event | Source
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1865 | County formed | Source:Red Book: American State, County, and Town Sources
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1865 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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1865 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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1865 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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1870 | First census | Source:Population of States and Counties of the United States: 1790-1990
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1877 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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1901 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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1920 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
Census Year | Population
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1870 | 722
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1880 | 2,712
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1890 | 4,655
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1900 | 5,615
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1910 | 6,446
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1920 | 7,369
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1930 | 6,654
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1940 | 6,943
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1950 | 6,671
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1960 | 7,194
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1970 | 8,187
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1980 | 8,186
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1990 | 8,424
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Research Tips
External links
www.rootsweb.com/~mtbeaver/
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