Belfast is a city of 6,986 people in Maine. The median age is 60.6, about 22 years above the US median. 5% of residents were born outside the United States. About 43% of adults have finished a four-year degree. Median rent is $962 a month. People stay put here: 94% were in the same home a year ago.
At a glance
Lower income
median household income $67,679, below the US median
US median: $82,259
Older
median age 60.6
US median: 38.9
More educated
43% hold a bachelor's degree
US average: 36%
Less affordable
home values up 98%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Belfast
What changed most since 1990
Median age38.5 → 60.6(+22.1 years)US over the same years: +6.0 years
White share98.7% → 89.8%(−8.9 pts)US over the same years: −17.8 pts
Adults with a bachelor's degree19.1% → 42.9%(+23.8 pts)US over the same years: +15.3 pts
Its weight in Waldo County
Belfast's population equals 17% of Waldo County's. Its number of households without a car equals 55% of the county's. Its number of foreign-born residents equals 36% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)11%(36)
US avg: 26.4%
Gulf War (1990s)25.2%(82)
US avg: 24.3%
Vietnam era46.9%(153)
US avg: 33.1%
Korean War5.8%(19)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 326 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Belfast, decade by decade
Belfast population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
6,355
$47,723
$196,086
19.1%
3.2
2000
6,381
$59,022
$172,511
29.1%
6.9
2010
6,668
$57,203
$218,231
24.7%
9.8
2020
6,938
$76,019
$223,136
44.0%
16.8
2024
6,986
$67,679
$340,900
42.9%
23.4
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
