Osage County on the map of Missouri 2025. Cities, roads, borders and directions in Osage County of Missouri.

Osage County is found in the central area of Missouri. This amazing county is named after Osage River, a 360 miles (580 km) long tributary of the Missouri River in central Missouri. The overall population of Osage County reaches 13 thousand people. The county, organized in 1841, covers an area of 606 square miles. The county seat of Osage County is Linn. This map shows the borders of Osage 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 Osage County.