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 7,015. It is also the county seat of Waldo County. Belfast is currently growing at a rate of 0.16% annually and its population has increased by 0.96% since the most recent census, which recorded a population of 6,948 in 2020.

The median household income in Belfast is $67,679 with a poverty rate of 16.05%. The median age in Belfast is 60.6 years: 56.8 years for males, and 61.8 years for females. For every 100 females there are 80.3 males.

7K
Total Population
206
Density (mi²)
11 0.16%
Growth

Belfast Population

Belfast Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20267,015110.16%
20257,004110.16%
20246,993-3-0.04%
20236,996-4-0.06%
20227,000-5-0.07%
20217,005570.82%
20206,94870.1%
20196,70300%
20186,703-29-0.43%
20176,732150.22%
20166,717831.25%
20156,634-19-0.29%
20146,653-4-0.06%
20136,657-12-0.18%
20126,66980.12%
20116,661-9-0.13%
20106,67020.03%
20006,381260.41%
19906,3551121.79%
19806,2432864.8%
19705,957-183-2.98%
19606,1401803.02%
19505,9604207.58%
19405,54054710.96%
19304,993-90-1.77%
19205,08346510.07%
19104,61830.07%
19004,615-679-12.83%
18905,294-14-0.26%
18805,308300.57%
18705,278-242-4.38%
18605,5204699.29%
18505,05100%

Median Age

Overall: 60.6 years
Female: 61.8 years
Male: 56.8 years

Belfast Adults

There are 5,993 adults, (2,729 of whom are seniors) in Belfast.

Sex Ratio

Female: 3,875 (55.5%)
Male: 3,111 (44.5%)

Demographics

The racial composition of Belfast includes 90.02% White, and smaller percentages for Black or African American, other race, Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White6,28990.02%
Two or more races5628.04%
Black or African American610.87%
Other race410.59%
Asian330.47%
Race
Population ↓
Percentage (of total)
Black or African American610.87%
Other race410.59%
Two or more races190.27%
White170.24%
Race
Population ↓
Percentage (of total)
White6,27289.78%
Two or more races5437.77%
Asian330.47%

Belfast Marital Status

Economics and Income Statistics

Belfast 's average per capita income is $45,519. Household income levels show a median of $67,679. The poverty rate stands at 16.05%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$104,300-
Families$82,141$123,268
Households$67,679$96,154
Non Families$37,425$53,223

$45,519

Average Income

$67,679

Median Household Income

16.05%

Poverty Rate

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)