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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
Polk County is a county in the U.S. state of Nebraska. As of the 2010 United States Census, the population was 5,406. Its county seat is Osceola. The county was formed in 1856, and was organized in 1870. It was named for President James K. Polk.
In the Nebraska license plate system, Polk County is represented by the prefix 41 (it had the 41st-largest number of vehicles registered in the county when the license plate system was established in 1922).
Timeline
| Date | Event | Source
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| 1856 | County formed | 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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| 1870 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1870 | Land 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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| 1870 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1871 | Marriage 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 | 19
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| 1870 | 136
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| 1880 | 6,846
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| 1890 | 10,817
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| 1900 | 10,542
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| 1910 | 10,521
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| 1920 | 10,714
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| 1930 | 10,092
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| 1940 | 8,748
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| 1950 | 8,044
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| 1960 | 7,210
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| 1970 | 6,468
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| 1980 | 6,320
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| 1990 | 5,675
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Research Tips
External links
www.wathenadesigns.com/Polk/index.html
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