
San Diego
- County:
- San Diego County
- County Seat:
- Yes
- Area (mi²):
- 326.087
- State:
- California
San Diego is a city located in San Diego County, California. San Diego has a 2025 population of 1,389,672. It is also the county seat of San Diego County. San Diego is currently growing at a rate of 0.05% annually and its population has increased by 0.24% since the most recent census, which recorded a population of 1,386,292 in 2020.
The average household income in San Diego is $139,707 with a poverty rate of 11.11%. The median age in San Diego is 36 years: 35.4 years for males, and 36.8 years for females.