Missoula County on the map of Montana as of 2025. Cities, roads, borders and directions in Missoula County of Montana.

Missoula County is found in the western area of Montana. This amazing county is named after Supposedly a contraction of the Flathead word, im-i-sul-e-etiku, meaning by or near the place of fear or ambush. The population of Missoula County exceeds 120 thousand people. The county, organized on February 2, 1865, spans an area of 2598 square miles. The county seat of Missoula County is Missoula. This map shows the borders of Missoula 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 Missoula County.