4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Santa Cruz | 1 | 61,762 | 64,218 | -0.66% | 4,848 | 13 | City |
| Watsonville | 2 | 50,744 | 52,471 | -0.56% | 7,478 | 7 | City |
| Scotts Valley | 3 | 11,630 | 12,223 | -0.84% | 2,518 | 5 | City |
| Capitola | 4 | 9,299 | 9,910 | -1.08% | 5,834 | 2 | City |
Santa Cruz is the largest city in Santa Cruz County, with a population of 61,762.
Capitola is the smallest city in Santa Cruz County, with a population of 9,299.
There are 4 cities in Santa Cruz County, California.