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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
Miami County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 108,774. Its county seat is Troy. The county is named in honor of the Miami people.
Miami County is part of the Dayton, OH Metropolitan Statistical Area.
Timeline
| Date | Event | Source
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| 1804 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1807 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1807 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1807 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1807 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1810 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1820 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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| 1853 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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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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| 1810 | 3,941
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| 1820 | 8,851
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| 1830 | 12,807
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| 1840 | 19,688
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| 1850 | 24,999
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| 1860 | 29,959
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| 1870 | 32,740
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| 1880 | 36,158
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| 1890 | 39,754
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| 1900 | 43,105
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| 1910 | 45,047
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| 1920 | 48,428
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| 1930 | 51,301
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| 1940 | 52,632
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| 1950 | 61,309
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| 1960 | 72,901
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| 1970 | 84,342
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| 1980 | 90,381
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| 1990 | 93,182
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Research Tips
External links
www.co.miami.oh.us/
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