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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
Idaho County is a county in the U.S. state of Idaho, and the largest by area in the state. As of the 2020 census, the population was 16,541. The county seat is Grangeville. Previous county seats of the area were Florence (1864–68), Washington (1868–75), and Mount Idaho (1875–1902).
Timeline
| Date | Event | Source
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| 1862 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1862 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1864 | County formed | 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 | Court 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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| 1907 | 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 | 849
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| 1880 | 2,031
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| 1890 | 2,955
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| 1900 | 9,121
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| 1910 | 12,384
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| 1920 | 11,749
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| 1930 | 10,107
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| 1940 | 12,691
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| 1950 | 11,423
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| 1960 | 13,542
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| 1970 | 12,891
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| 1980 | 14,769
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| 1990 | 13,783
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Cemeteries
Cemeteries of Idaho County, Idaho, United States
Research Tips
External links
www.idahocounty.org
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