| Place Name | Belfast |
| Place Type | City |
| ZIP Code(s) | 04915 |
| County | Waldo County |
| Area Code(s) | 207 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 6,664 |
| Population Growth Rate (2010-19) | 4.05% |
| Majority Ethnicity | White 97.26% |
| US Congressional District(s) | Maine 2nd |
| State House Districts | 97 |
| State Senate Districts | 11 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.26% |
| African American | 1.3% |
| Hispanic | 0.46% |
| Asian | 0.45% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.53% |