| Name | Benton County |
| State | Washington |
| FIPS Code | 53005 |
| County Seat | Prosser |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 175,424 |
| Population Growth Rate(2000-2022) | 18.09% |
| Majority Ethnicity | White 92.6% |
| Public School Majority Ethnicity | White 56% |
| Partisan Voting Index | Republican:+11 |
| Unemployment Rate (February 2025) | 5.2% |
| Area Code(s) | 509 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 92.6% |
| African American | 2.15% |
| Hispanic | 0.91% |
| Asian | 3.78% |
| Native American | 0.28% |
| Hawaiin/Pacific Islander | 0.28% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 56.23% |
| African American | 2.14% |
| Hispanic | 33.72% |
| Asian | 2.3% |
| Native American | 0.32% |
| Hawaiin/Pacific Islander | 0.24% |