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Mercer County Map, Ohio

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Mercer County, Ohio

Mercer Location Map Ohio

Mercer County is right on the Indiana border. It’s as flat as a pancake. Farming dominates the landscape. The county’s named after Hugh Mercer, a general in the Revolutionary War.

Grand Lake St. Marys State Park holds Ohio’s largest inland lake. Celina is the county seat, which sits on its shores. The area has 52 miles of shoreline, great for camping, boating and fishing.

Manufacturing plays a big role in the local economy. There’s a strong German heritage here. You can taste it in the local cuisine. The county fair is a highlight of the summer. Community ties run deep in Mercer County.

CategoryDetails
County NameMercer County
County SeatCelina
PopulationApproximately 43,000
Cities, Towns, and CommunitiesCelina, St. Henry, Fort Recovery, Mendon
Interstates and HighwaysU.S. Highway 127, State Route 29, State Route 118
FIPS Code39-107
Total Area476 square miles (land and water)
Adjacent CountiesAdams County, Indiana (Northwest), Van Wert County (North), Auglaize County (East), Shelby County (Southeast), Darke County (South), Jay County, Indiana (Southwest)
Time ZoneEastern Time Zone
StateOhio
Coordinates40.5455° N, 84.5782° W
EtymologyNamed after Hugh Mercer, a general in the Revolutionary War
Major LandmarksMercer County Historical Museum, Grand Lake St. Marys
WebsiteMercer County Website

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