Ranking of San Luis Obispo, CA Cities and Places By population in 2021
Updated on June 27, 2025.
Based on the US Census Vintage data estimates, in 2021, among all San Luis Obispo, CA cities and places, Balance of San Luis Obispo County had the highest population (120.26K), followed by San Luis Obispo city (47.88K), and El Paso de Robles (Paso Robles) city (31.54K).
The chart below shows the top 8 cities and places, and the table below shows the ranking of all San Luis Obispo cities and places.
You can see similar information for other California counties. You can also see the ranking of all cities and places in California.
Data Source: US Census Bureau (Vintage).
Ranking of San Luis Obispo, CA Cities and Places By population in 2021
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| Rank | City or Place | Population |
|---|---|---|
| 1 | Balance of San Luis Obispo County | 120255 |
| 2 | San Luis Obispo city | 47882 |
| 3 | El Paso de Robles (Paso Robles) city | 31540 |
| 4 | Atascadero city | 29754 |
| 5 | Arroyo Grande city | 18487 |
| 6 | Grover Beach city | 12701 |
| 7 | Morro Bay city | 10786 |
| 8 | Pismo Beach city | 8063 |