Belfast Flag

Belfast

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

Belfast is located in Waldo County, Maine. Belfast has a 2025 population of 7,143. It is also the county seat of Waldo CountyBelfast is currently growing at a rate of 0.52% annually and its population has increased by 2.87% since the most recent census, which recorded a population of 6,944 in 2020.

The average household income in Belfast is $92,563 with a poverty rate of 18.16%.The median age in Belfast is 56.7 years: 54.6 years for males, and 60.4 years for females.

7.1K
Total Population
210
Density (mi²)
37 0.52%
Growth

Belfast Population

Demographics

Economics and Income Statistics

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)