Whitman County on the map of Washington as of 2026. Cities, roads, borders and directions in Whitman County of Washington.

Whitman County is found on the eastern edge of the state of Washington. This famous county is named after Marcus Whitman (1802-1847), a Methodist missionary. The population of Whitman County exceeds 48 thousand people. The county, organized in 1871, covers an area of 2159 square miles. The county seat of Whitman County is Colfax. This map shows the borders of Whitman 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 Whitman County.