Herndon town, Virginia
Official LSAD Designation: Herndon town • Census GEOID: 5136648
• Fairfax County / Loudoun County
Demographics & Population Profile
Population and demographics for Herndon town.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 25,506 | — | 2025 | Census |
| Median Age | 35.1 yrs | ±1.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 7,796 | ±360 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).