San Diego Flag

San Diego

County Seat:
Yes
Area (mi²):
326.028
State:
California

San Diego is a city located in San Diego County, California. San Diego has a 2026 population of 1,404,452. It is also the county seat of San Diego County. San Diego is currently growing at a rate of 0.71% annually and its population has increased by 1.42% since the most recent census, which recorded a population of 1,384,824 in 2020.

1.4M
Total Population
4,308
Density (mi²)
9.9K 0.71%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)