Place:Mercer, Ohio, United States

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source: Getty Thesaurus of Geographic Names
source: Family History Library Catalog


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Mercer County is a county located in the state of Ohio, United States. According to the 2010 census, it has a population of 40,814, which is a decrease of 0.3% from 40,924 in 2000. Its county seat is Celina and is named for Hugh Mercer, an officer in the American Revolutionary War.

The Celina Micropolitan Statistical Area includes all of Mercer County.

Contents

Timeline

Date Event Source
1820 County formed Source:Red Book: American State, County, and Town Sources
1820 First census Source:Population of States and Counties of the United States: 1790-1990
1823 Land records recorded Source:Red Book: American State, County, and Town Sources
1824 Court records recorded Source:Red Book: American State, County, and Town Sources
1824 Probate records recorded Source:Red Book: American State, County, and Town Sources
1838 Marriage records recorded Source:Red Book: American State, County, and Town Sources
1850 No significant boundary changes after this year Source:Population of States and Counties of the United States: 1790-1990
1867 Birth records recorded Source:Red Book: American State, County, and Town Sources

Population History

source: Source:Population of States and Counties of the United States: 1790-1990
Census Year Population
1820 95
1830 1,110
1840 8,277
1850 7,712
1860 14,104
1870 17,254
1880 21,808
1890 27,220
1900 28,021
1910 27,536
1920 26,872
1930 25,096
1940 26,256
1950 28,311
1960 32,559
1970 35,265
1980 38,334
1990 39,443

Note: In 1820 Mercer was reported as attached to Darke.

Research Tips

External links

www.mercercountyohio.org/


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