Rock River
- County:
- Albany County
- County Seat:
- No
- Area (mi²):
- 2.327
- State:
- Wyoming
Rock River is a town located in Albany County, Wyoming. Rock River has a 2026 population of 224. Rock River is currently growing at a rate of 1.36% annually and its population has increased by 4.19% since the most recent census, which recorded a population of 215 in 2020.