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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
Columbia County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 58,490. Its county seat and largest city is Portage. The county was created in 1846 as part of Wisconsin Territory.
Columbia County is part of the Madison, WI Metropolitan Statistical Area as well as the Madison-Janesville-Beloit, WI Combined Statistical Area.
Timeline
Date | Event | Source
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1826 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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1846 | County formed | Source:Red Book: American State, County, and Town Sources
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1847 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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1849 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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1850 | First census | Source:Population of States and Counties of the United States: 1790-1990
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1850 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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1851 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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1860 | 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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1850 | 9,565
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1860 | 24,441
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1870 | 28,802
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1880 | 28,065
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1890 | 28,350
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1900 | 31,121
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1910 | 31,129
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1920 | 30,468
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1930 | 30,503
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1940 | 32,517
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1950 | 34,023
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1960 | 36,708
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1970 | 40,150
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1980 | 43,222
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1990 | 45,088
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Research Tips
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