
National City
- County:
- San Diego County
- County Seat:
- No
- Area (mi²):
- 7.348
- State:
- California
National City is a city located in San Diego County, California. National City has a 2025 population of 54,584. National City is currently declining at a rate of -0.59% annually and its population has decreased by -2.9% since the most recent census, which recorded a population of 56,213 in 2020.
The average household income in National City is $79,088 with a poverty rate of 13.97%. The median age in National City is 36.6 years: 35.3 years for males, and 38.4 years for females.