
Riverside
- County:
- Okanogan County
- County Seat:
- No
- Area (mi²):
- 0.887
- State:
- Washington
Riverside is a town located in Okanogan County, Washington. Riverside has a 2025 population of 337. Riverside is currently growing at a rate of 0.9% annually and its population has increased by 4.01% since the most recent census, which recorded a population of 324 in 2020.
The average household income in Riverside is $49,726 with a poverty rate of 36.32%. The median age in Riverside is 34.1 years: 28.8 years for males, and 39.9 years for females.