Atherton town, California
Official LSAD Designation: Atherton town • Census GEOID: 0603092
• San Mateo County
Demographics & Population Profile
Population and demographics for Atherton town.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 6,960 | — | 2025 | Census |
| Median Age | 49.1 yrs | ±2.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,227 | ±126 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).