Gilliam County | |
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Coordinates: 45°23′N 120°13′W / 45.38°N 120.21°W | |
Country | United States |
State | Oregon |
Founded | February 25, 1885 |
Named for | Cornelius Gilliam |
Seat | Condon |
Largest city | Condon |
Area | |
• Total | 1,223 sq mi (3,170 km2) |
• Land | 1,205 sq mi (3,120 km2) |
• Water | 18 sq mi (50 km2) 1.5% |
Population (2020) | |
• Total | 1,995 |
• Estimate (2023) | 2,026 |
• Density | 1.6/sq mi (0.63/km2) |
Congressional district | 2nd |
Website | www |
Gilliam County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 1,995,[1] making it the third-least populous county in Oregon. The county seat is Condon.[2] The county was established in 1885 and is named for Cornelius Gilliam,[3] a colonel who commanded the forces of the provisional government of Oregon after the Whitman Massacre.