Adams County
County in Washington State
Adams County is a county in the U.S. state of Washington. As of the 2020 census, the population was 20,613. The county seat is at Ritzville, and its largest city is Othello. The county was formed out of Whitman County in November 1883 and is named... Wikipedia
Population: 20,961 (2022)
County seat: Ritzville
Area: 1,930 mi²
Congressional districts: 4th, 5th
Largest city: Othello
Named for: John Adams