
Rossmoor
- County:
- Orange County
- County Seat:
- No
- Area (mi²):
- 1.559
- State:
- California
Rossmoor is a CDP located in Orange County, California. Rossmoor has a 2025 population of 12,117. Rossmoor is currently growing at a rate of 1.04% annually and its population has increased by 1.63% since the most recent census, which recorded a population of 11,923 in 2020.
The average household income in Rossmoor is $262,589 with a poverty rate of 3.83%. The median age in Rossmoor is 47 years: 44.9 years for males, and 48 years for females.