Putnam County on the map of Ohio 2025. Cities, roads, borders and directions in Putnam County of Ohio.

USA / Ohio / Putnam County

Putnam County is situated in the northwestern part of Ohio. This wonderful county was named after General Israel Putnam (1718-1790), a Revolutionary War officer. The area of Putnam County is about 483.87 square miles. The county, founded on Apr 1, 1820 from Shelby County, and it is populated today by 34 thousand residents. Ottawa is the county seat of Putnam County. This map shows the borders of Putnam County as well as neighboring counties, including major highways and natural objecsts as of 2025. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Putnam County.

The borders of Putnam County over the map of Ohio

An image of Putnam County, OH

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