
Castroville
- County:
- Monterey County
- County Seat:
- No
- Area (mi²):
- 1.021
- State:
- California
Castroville is a CDP located in Monterey County, California. Castroville has a 2025 population of 6,655. Castroville is currently growing at a rate of 0.18% annually and its population has increased by 5.1% since the most recent census, which recorded a population of 6,332 in 2020.
The average household income in Castroville is $92,861 with a poverty rate of 14.59%. The median age in Castroville is 29.6 years: 32.5 years for males, and 26 years for females.