Belfast Flag

Belfast

County:
Waldo County
County Seat:
Yes
Area (mi²):
34.051
State:
Maine

Belfast is a city located in Waldo County, Maine. Belfast has a 2026 population of 6,993. It is also the county seat of Waldo County. Belfast is currently declining at a rate of -0.04% annually but its population has increased by 0.65% since the most recent census, which recorded a population of 6,948 in 2020.

7K
Total Population
205
Density (mi²)
-3 -0.04%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)