National City
- County:
- San Diego County
- County Seat:
- No
- Area (mi²):
- 7.344
- State:
- California
National City is a city located in San Diego County, California. National City has a 2026 population of 58,460. National City is currently growing at a rate of 0.58% annually but its population has decreased by -4.91% since the most recent census, which recorded a population of 61,476 in 2020.