Benton County | |
|---|---|
 Benton County Courthouse | |
 Seal | |
 Location within the U.S. state of Washington | |
 Washington's location within the U.S. | |
| Coordinates: 46°15′N 119°30′W / 46.25°N 119.5°W | |
| Country |  United States |
| State |  Washington |
| Founded | March 8, 1905 |
| Named for | Thomas Hart Benton |
| Seat | Prosser |
| Largest city | Kennewick |
| Area | |
| • Total | 1,760 sq mi (4,600 km2) |
| • Land | 1,700 sq mi (4,000 km2) |
| • Water | 60 sq mi (200 km2) 3.4% |
| Population (2020) | |
| • Total | 206,873 |
| • Estimate (2023) | 215,219  |
| • Density | 110/sq mi (40/km2) |
| Time zone | UTC−8 (Pacific) |
| • Summer (DST) | UTC−7 (PDT) |
| Congressional district | 4th |
| Website | bentoncountywa |
Benton County is a county in the south-central portion of the U.S. state of Washington. As of the 2020 census, its population was 206,873.[1] The county seat is Prosser,[2] and its most populous city is Kennewick. The Columbia River demarcates the county's north, south, and east boundaries.
Benton County was created from what were then larger versions of Klickitat County and Yakima County on March 8, 1905,[3] and was named after Missouri statesman Thomas Hart Benton.
- ^ "State & County QuickFacts". United States Census Bureau. Retrieved November 10, 2024.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ^ "Milestones for Washington State History — Part 3: 1901 to 1950". HistoryLink.org. March 6, 2003.