
Nyssa
- County:
- Malheur County
- County Seat:
- No
- Area (mi²):
- 1.55
- State:
- Oregon
Nyssa is a city located in Malheur County, Oregon. Nyssa has a 2025 population of 3,281. Nyssa is currently growing at a rate of 0.43% annually and its population has increased by 2.18% since the most recent census, which recorded a population of 3,211 in 2020.
The average household income in Nyssa is $60,978 with a poverty rate of 15.35%. The median age in Nyssa is 27.7 years: 23.8 years for males, and 29.9 years for females.