Pomeroy
- County:
- Garfield County
- County Seat:
- Yes
- Area (mi²):
- 1.776
- State:
- Washington
Pomeroy is a city located in Garfield County, Washington. Pomeroy has a 2026 population of 1,471. It is also the county seat of Garfield County. Pomeroy is currently growing at a rate of 2.51% annually and its population has increased by 4.85% since the most recent census, which recorded a population of 1,403 in 2020.