Arroyo Grande city, California
Official LSAD Designation: Arroyo Grande city • Census GEOID: 0602868
• San Luis Obispo County
Demographics & Population Profile
Population and demographics for Arroyo Grande city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 18,123 | — | 2025 | Census |
| Median Age | 45.8 yrs | ±4.1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 7,712 | ±479 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).