Belfast city, Maine
Official LSAD Designation: Belfast city • Census GEOID: 2303950
• Waldo County
Demographics & Population Profile
Population and demographics for Belfast city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 6,988 | — | 2025 | Census |
| Median Age | 60.6 yrs | ±3.1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 3,400 | ±193 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).