
Castalia
- County:
- Nash County
- County Seat:
- No
- Area (mi²):
- 0.756
- State:
- North Carolina
Castalia is a town located in Nash County, North Carolina. Castalia has a 2025 population of 276. Castalia is currently growing at a rate of 1.1% annually and its population has increased by 5.75% since the most recent census, which recorded a population of 261 in 2020.
The average household income in Castalia is $44,065 with a poverty rate of 36.77%. The median age in Castalia is 33.7 years: 25.8 years for males, and 41.3 years for females.