
Harmony Grove
- County:
- San Diego County
- County Seat:
- No
- Area (mi²):
- 3.081
- State:
- California
Harmony Grove is a CDP located in San Diego County, California. Harmony Grove has a 2025 population of 2,549. Harmony Grove is currently growing at a rate of 7.15% annually and its population has increased by 70.62% since the most recent census, which recorded a population of 1,494 in 2020.
The average household income in Harmony Grove is $239,703 with a poverty rate of 3.96%. The median age in Harmony Grove is 36.7 years: 37.2 years for males, and 36.2 years for females.