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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
Mahaska County is a county located in the U.S. state of Iowa. The population was 22,381 in the 2010 census, an increase from 22,335 in the 2000 census.[1][2] The county seat is Oskaloosa.
Timeline
| Date | Event | Source
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| 1843 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1844 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1844 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1844 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1845 | Land 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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| 1880 | 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 | 5,989
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| 1860 | 14,816
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| 1870 | 22,508
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| 1880 | 25,202
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| 1890 | 28,805
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| 1900 | 34,273
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| 1910 | 29,860
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| 1920 | 26,270
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| 1930 | 25,804
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| 1940 | 26,485
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| 1950 | 24,672
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| 1960 | 23,602
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| 1970 | 22,177
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| 1980 | 22,867
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| 1990 | 21,522
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Research Tips
External links
www.rootsweb.com/~iamahask/
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