4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Santa Cruz | 1 | 62,171 | 64,218 | -0.66% | 4,880 | 13 | City |
| Watsonville | 2 | 51,032 | 52,471 | -0.56% | 7,520 | 7 | City |
| Scotts Valley | 3 | 11,729 | 12,223 | -0.84% | 2,540 | 5 | City |
| Capitola | 4 | 9,401 | 9,910 | -1.07% | 5,898 | 2 | City |
Santa Cruz is the largest city in Santa Cruz County, with a population of 62,171.
Capitola is the smallest city in Santa Cruz County, with a population of 9,401.
There are 4 cities in Santa Cruz County, California.