Gilliam County on the map of Oregon 2024. Cities, roads, borders and directions in Gilliam County of Oregon.

Gilliam County is situated on the northern border of Oregon. This famous county is named after Cornelius Gilliam (1798-1848), a pioneer who commanded the forces of the Provisional Government of Oregon. The population of Gilliam County exceeds 2 thousand people. The county, organized in 1885, covers an area of 1,204 square miles. The county seat of Gilliam County is Condon. This map shows the borders of Gilliam County as well as neighboring counties, including major highways and natural objecsts as of 2024. 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 Gilliam County.