Rock County on the map of Wisconsin 2024. Cities, roads, borders and directions in Rock County of Wisconsin.

Rock County is situated on the southern border of Wisconsin. This prominent county is named after Rock River, which flows through the county. The area of Rock County is about 718 square miles. This county, set up in 1836, is populated today by 164 thousand residents. Janesville is the county seat of Rock County. This map shows the borders of Rock 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 Rock County.