7 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| El Centro | 1 | 44,124 | 44,441 | -0.12% | 3,641 | 12 | City |
| Calexico | 2 | 38,825 | 38,582 | 0.11% | 4,586 | 8 | City |
| Brawley | 3 | 29,027 | 26,510 | 1.47% | 3,588 | 8 | City |
| Imperial | 4 | 22,918 | 20,469 | 1.81% | 3,634 | 6 | City |
| Calipatria | 5 | 6,354 | 6,858 | -1.3% | 1,705 | 4 | City |
| Holtville | 6 | 5,620 | 5,596 | 0.07% | 4,917 | 1 | City |
| Westmorland | 7 | 2,060 | 2,014 | 0.39% | 3,383 | 1 | City |
El Centro is the largest city in Imperial County, with a population of 44,124.
Westmorland is the smallest city in Imperial County, with a population of 2,060.
There are 7 cities in Imperial County, California.