
Farmington
- County:
- Whitman County
- County Seat:
- No
- Area (mi²):
- 0.362
- State:
- Washington
Farmington is a town located in Whitman County, Washington. Farmington has a 2025 population of 137. Farmington is currently growing at a rate of 0.74% annually and its population has increased by 4.58% since the most recent census, which recorded a population of 131 in 2020.
The average household income in Farmington is $60,957 with a poverty rate of 13.97%. The median age in Farmington is 55.3 years: 55 years for males, and 56.3 years for females.