Jefferson County on the map of Kentucky 2024. Cities, roads, borders and directions in Jefferson County of Kentucky.

Jefferson County is the most populous county in Kentucky, home to more than 780 thousand people. Louisville is both the county seat and the largest city of Jefferson County. This map shows the borders of Jefferson 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 Jefferson County.