Imperial Beach
- County:
- San Diego County
- County Seat:
- No
- Area (mi²):
- 4.292
- State:
- California
Imperial Beach is a city located in San Diego County, California. Imperial Beach has a 2026 population of 25,568. Imperial Beach is currently declining at a rate of -0.11% annually and its population has decreased by -2.04% since the most recent census, which recorded a population of 26,101 in 2020.