There are 6 cities in San Luis Obispo County, California.
City | Rank | State | 2023 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| San Luis Obispo | 1 | California | 48,439 | 47,104 | 0.94% | 3,635 | 13.33 |
| Atascadero | 2 | California | 29,650 | 29,737 | -0.1% | 1,138 | 26.06 |
| Arroyo Grande | 3 | California | 18,528 | 18,420 | 0.19% | 3,121 | 5.94 |
| Grover Beach | 4 | California | 12,745 | 12,694 | 0.13% | 5,513 | 2.31 |
| Morro Bay | 5 | California | 10,835 | 10,751 | 0.26% | 2,035 | 5.32 |
| Pismo Beach | 6 | California | 7,994 | 8,057 | -0.26% | 2,286 | 3.50 |
San Luis Obispo is the largest city in San Luis Obispo County.
Pismo Beach is the smallest city in San Luis Obispo County.
There are 6 cities in San Luis Obispo County, California.