Mercer County is the name of several counties in the United States:
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Mercer County, New Jersey
Mercer County is a county located in the U.S. state of New Jersey. Its county seat is Trenton, also the state capital, but also directly borders the Philadelphia metropolitan area and is included within the Federal Communications Commission's ...
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Mercer County, Illinois
Mercer County is a county in Illinois. According to the 2010 census, it had a population of 16,434. Its county seat is Aledo.
Mercer County is included in the Davenport- Moline- Rock Island, IA-IL Metropolitan Statistical Area.
History
Merc ...
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Mercer County, Kentucky
Mercer County is a county located in the U.S. Commonwealth of Kentucky. As of the 2020 census, the population was 23,772. Its county seat is Harrodsburg. The county was formed from Lincoln County, Virginia in 1785 and is named for Revolutionar ...
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Mercer County, Missouri
Mercer County is a county located in the northwestern portion of the U.S. state of Missouri. As of the 2020 census, the population was 3,538. making it the second-least populous county in Missouri. Its county seat is Princeton. The county was o ...
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Mercer County, North Dakota
Mercer County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 8,350. Its county seat is Stanton.
History
The Dakota Territory legislature enacted an January 8, 1873 law to create a county named Merce ...
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Mercer County, Ohio
Mercer County is located in the U.S. state of Ohio. As of the 2020 census, the population was 42,528. Its county seat is Celina. The county was created in 1820 and later organized in 1824. It is named for Hugh Mercer, an officer in the Amer ...
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Mercer County, Pennsylvania
Mercer County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 110,652. Its county seat is Mercer, and its largest city is Hermitage. The county was created in 1800 and later organized in 1803.
Merce ...
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Mercer County, Virginia Mercer County, Virginia has existed twice in the U.S. state of Virginia's history. Formed in 1785, and 1837, respectively, both counties were named for Revolutionary War General Hugh Mercer, who was killed at the Battle of Princeton in 1777, and e ...
, has existed twice; the two counties continue in existence with the same name in Kentucky and West Virginia
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Mercer County, West Virginia
Mercer County is a county on the southeastern border of the U.S. state of West Virginia. At the 2020 census, the population was 59,664. Its county seat is Princeton. The county was originally established in the State of Virginia by act of its G ...
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