Seaford city, Delaware
Official LSAD Designation: Seaford city • Census GEOID: 1064320
• Sussex County
Seaford city is an incorporated city in Sussex County, Delaware. According to official records from the Census (2025), Seaford city had an estimated population of 9,165 residents. Official Census Bureau geographic records classify this community under LSAD designation Seaford city (GEOID 1064320).
Local Government Administration U.S. Census Bureau GMAF
City Of Seaford
Municipal
Official Title:
Director Of Finance & Human Resources
Address:
PO BOX 1100, SEAFORD DE 19973-5100
County Of Sussex
County
Official Title:
Clerk Of Council
Address:
PO BOX 589, GEORGETOWN DE 19947-0589
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 9,165 | 2025 |
| Median Household Income | $54,016 | 2020-2024 |
| Median Home Value | $224,300 | 2020-2024 |
| Land Area | 5.08 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).