Adams County | |
|---|---|
 Adams County Courthouse (erected 1941) in 2014 | |
 Location within the U.S. state of Washington | |
 Washington's location within the U.S. | |
| Coordinates: 47°00′40″N 118°30′46″W / 47.01111°N 118.51278°W | |
| Country |  United States |
| State |  Washington |
| Founded | November 28, 1883 |
| Named for | John Adams |
| Seat | Ritzville |
| Largest city | Othello |
| Area | |
| • Total | 1,930 sq mi (5,000 km2) |
| • Land | 1,925 sq mi (4,990 km2) |
| • Water | 4.9 sq mi (13 km2) 0.3% |
| Population (2020) | |
| • Total | 20,613 |
| • Estimate (2023) | 20,820  |
| • Density | 11/sq mi (4.1/km2) |
| Time zone | UTC−8 (Pacific) |
| • Summer (DST) | UTC−7 (PDT) |
| Congressional districts | 4th, 5th |
| Website | co.adams.wa.us |
Adams County is a county in the U.S. state of Washington. As of the 2020 census, the population was 20,613.[1] The county seat is at Ritzville, and its largest city is Othello. The county was formed out of Whitman County in November 1883[2] and is named after John Adams, the second President of the United States. Adams County's two most populous cities are Ritzville and Othello. Ritzville is located in the northeastern corner of the county at the junction of I-90 and US 395, making it a popular stop for travelers. Ritzville is an hour's drive from Spokane. Othello is located in the southwestern panhandle of the county.
- ^ "State & County QuickFacts". United States Census Bureau. Retrieved November 9, 2024.
- ^ "Milestones for Washington State History — Part 2: 1851 to 1900". HistoryLink.org. March 6, 2003.