
Fallbrook
- County:
- San Diego County
- County Seat:
- No
- Area (mi²):
- 17.541
- State:
- California
Fallbrook is a CDP located in San Diego County, California. Fallbrook has a 2025 population of 34,504. Fallbrook is currently growing at a rate of 0.77% annually and its population has increased by 6.63% since the most recent census, which recorded a population of 32,359 in 2020.
The average household income in Fallbrook is $108,598 with a poverty rate of 14.81%. The median age in Fallbrook is 34.4 years: 34.8 years for males, and 34 years for females.