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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
Monona County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 8,751. The county seat is Onawa.
Timeline
| Date | Event | Source
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| 1851 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1856 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1858 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1860 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1860 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1870 | 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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| 1860 | 832
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| 1870 | 3,654
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| 1880 | 9,055
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| 1890 | 14,515
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| 1900 | 17,980
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| 1910 | 16,633
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| 1920 | 17,125
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| 1930 | 18,213
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| 1940 | 18,238
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| 1950 | 16,303
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| 1960 | 13,916
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| 1970 | 12,069
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| 1980 | 11,692
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| 1990 | 10,034
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Cemeteries
Cemeteries of Monona County, Iowa, United States
Research Tips
External links
www.rootsweb.com/~iamonona/
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