Douglas County on the map of Illinois as of 2026. Cities, roads, borders and directions in Douglas County of Illinois.

Douglas County is found in the eastern region of Illinois. This famous county was named after Stephen A. Douglas (1813–1861), prominent Illinois Democrat who engaged in debates with Abraham Lincoln. The total population of Douglas County exceeds 20 thousand people. The county, organized in 1859, covers an area of 416 square miles. The county seat of Douglas County is Tuscola. This map shows the borders of Douglas County as well as neighboring counties, including major highways and natural objecsts as of 2026. 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 Douglas County.