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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
Guernsey County is a county located in the state of Ohio. According to the 2010 census, it has a population of 40,087, which is a decrease of 1.7% from 40,792 in 2000. Its county seat is Cambridge, and it is named for the Isle of Guernsey in the English Channel, from which many of the county's early settlers came.
The Cambridge Micropolitan Statistical Area includes all of Guernsey County.
Timeline
| Date | Event | Source
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| 1802 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1810 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1810 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1810 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1810 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1812 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1860 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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| 1867 | 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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| 1810 | 3,051
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| 1820 | 9,292
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| 1830 | 18,036
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| 1840 | 27,748
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| 1850 | 30,438
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| 1860 | 24,474
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| 1870 | 23,838
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| 1880 | 27,197
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| 1890 | 28,645
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| 1900 | 34,425
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| 1910 | 42,716
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| 1920 | 45,352
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| 1930 | 41,486
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| 1940 | 38,822
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| 1950 | 38,452
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| 1960 | 38,579
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| 1970 | 37,665
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| 1980 | 42,024
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| 1990 | 39,024
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Research Tips
External links
www.usgennet.org/usa/oh/county/guernsey/
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