Belfast city, Maine
Official LSAD Designation: Belfast city • Census GEOID: 2303950
• Waldo County
Belfast city is an incorporated city in Waldo County, Maine. According to official records from the Census (2025), Belfast city had an estimated population of 6,988 residents. Official Census Bureau geographic records classify this community under LSAD designation Belfast city (GEOID 2303950).
Local Government Administration U.S. Census Bureau GMAF
City Of Belfast
Municipal
Official Title:
Administrative Assistant To The City
Address:
131 CHURCH ST, BELFAST ME 04915-6561
County Of Waldo
County
Official Title:
County Clerk
Address:
39B SPRING ST, BELFAST ME 04915-6439
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 6,988 | 2025 |
| Median Household Income | $67,679 | 2020-2024 |
| Median Home Value | $340,900 | 2020-2024 |
| Land Area | 34.05 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).