McDonough County on the map of Illinois 2025. Cities, roads, borders and directions in McDonough County of Illinois.
USA / Illinois / McDonough CountyMcDonough County is found in the western area of Illinois. This awesome county was named after Commodore Thomas Macdonough (1783-1825), commander of American naval forces at the Battle of Plattsburgh. The population of McDonough County exceeds 27 thousand people. The county, formed in 1826, covers an area of 589 square miles. The county seat of McDonough County is Macomb. This map shows the borders of McDonough 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 McDonough County.
The borders of McDonough County over the map of Illinois
Explore some more counties of Illinois:
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Full list of Illinois maps
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