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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
Lyon County is the most northwesterly county of the U.S. state of Iowa. As of the 2020 census, the population was 11,934. The county seat is Rock Rapids.
Lyon County is named in honor of Brigadier General Nathaniel Lyon, who served in the Mexican–American War and the Civil War. He was killed at the Battle of Wilson's Creek, Missouri, on August 10, 1861, after which the county was named for him. The county's name was originally Buncombe County, but was changed by the state legislature on September 11, 1862.
Timeline
Date | Event | Source
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1851 | County formed | Source:Red Book: American State, County, and Town Sources
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1862 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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1870 | First census | Source:Population of States and Counties of the United States: 1790-1990
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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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1872 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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1874 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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1880 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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1885 | Probate 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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1870 | 221
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1880 | 1,968
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1890 | 8,680
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1900 | 13,165
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1910 | 14,624
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1920 | 15,431
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1930 | 15,293
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1940 | 15,374
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1950 | 14,697
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1960 | 14,468
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1970 | 13,340
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1980 | 12,896
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1990 | 11,952
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Cemeteries
Cemeteries of Lyon County, Iowa, United States
Research Tips
External links
www.rootsweb.com/~ialyon/
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