Gilliam County | |
|---|---|
 Gilliam County Courthouse in Condon | |
 Location within the U.S. state of Oregon | |
 Oregon's location within the U.S. | |
| 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.
- ^ "State & County QuickFacts". United States Census Bureau. Retrieved May 20, 2023.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp. 137.