Seaford city, Delaware
Official LSAD Designation: Seaford city • Census GEOID: 1064320
• Sussex County
Demographics & Population Profile
Population and demographics for Seaford city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 9,165 | — | 2025 | Census |
| Median Age | 41.1 yrs | ±5.5 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 3,516 | ±283 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).