United States County Maps

Find US county maps for each State.

Find your Ohio county by searching for your address, or by clicking on the map. County boundaries are from the U.S. Census Bureau's 2025 TIGER/Line files.

Ohio Counties

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About Ohio

Ohio is a state in the Midwestern region of the United States. It borders the Canadian province of Ontario to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest. Ohio is the 34th-largest state by area, at 44,825 sq mi (116,100 km²), and the seventh-most populous state, with a population of nearly 11.9 million. Its capital and most populous city is Columbus. Other urban areas include the major metropolitan cities of Cleveland and Cincinnati, alongside Dayton, Akron, and Toledo.

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This site has an interactive map of Ohio Counties. Click on the map to find your Ohio county, and view more details. You can also search for your address and use your GPS to find your Ohio County.

Find what County you are in, and see official Ohio County resources and information. Find any county in the United Stated, along with resources and links to official County websites. See a County map and local details. Looking for what county you are currently in? Find out on this map or use your device GPS to see what county you are in.