Johnson County on the map of Kansas 2024. Cities, roads, borders and directions in Johnson County of Kansas.

Johnson County is located on the eastern edge of Kansas. This wonderful county is named after Thomas Johnson, Methodist missionary, one of the first settlers of Kansas. The county seat of Johnson County is Olathe. The county's area is estimated at 477 square miles. Founded in 1855, today Johnson County is home to 613 thousand residents. This map shows the borders of Johnson 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 Johnson County.