Happy Valley
- County:
- Clackamas County
- County Seat:
- No
- Area (mi²):
- 11.901
- State:
- Oregon
Happy Valley is a city located in Clackamas County, Oregon. Happy Valley has a 2026 population of 28,969. Happy Valley is currently growing at a rate of 1.66% annually and its population has increased by 20.21% since the most recent census, which recorded a population of 24,098 in 2020.