Richland
- County:
- Benton County
- County Seat:
- No
- Area (mi²):
- 42.466
- State:
- Washington
Richland is a city located in Benton County, Washington. Richland has a 2026 population of 64,372. Richland is currently growing at a rate of 1.08% annually and its population has increased by 5.72% since the most recent census, which recorded a population of 60,892 in 2020.