Defiance County on the map of Ohio 2024. Cities, roads, borders and directions in Defiance County of Ohio.

Defiance County is situated in the northwestern area of Ohio. This well known county is named after Fort Defiance, built in 1794 by General Anthony Wayne. The area of Defiance County is about 411.16 square miles. The county, founded on Apr 7, 1845 from Williams, Henry, and Paulding Counties, and it is populated today by 38 thousand residents. Defiance is the county seat of Defiance County. This map shows the borders of Defiance County as well as neighboring counties, including major highways and natural objecsts as of 2024. 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 Defiance County.