Johnson County on the map of Illinois 2025. Cities, roads, borders and directions in Johnson County of Illinois.
USA / Illinois / Johnson CountyJohnson County is located on the southern edge of Illinois. This remarkable county was named after Richard Mentor Johnson (c. 1780-1850), ninth Vice President of the United States and United States Senator from Kentucky. The county seat of Johnson County is Vienna. The county's area is 343 square miles. Established in 1812, today Johnson County is home to 13 thousand americans. This map shows the borders of Johnson 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 Johnson County.
The borders of Johnson County over the map of Illinois
Explore some more counties of Illinois:
- Woodford County
- Winnebago County
- Williamson County
- Will County
- Whiteside County
- White County
- Wayne County
- Washington County
- Warren County
- Wabash County
- Vermilion County
- Union County
- Tazewell County
- Stephenson County
- Stark County
- St. Clair County
- Shelby County
- Scott County
- Schuyler County
- Sangamon County
Full list of Illinois maps
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