Belfast, Maine

Belfast population, 2020 to 2024

Belfast added 45 residents from July 2020 to July 2024, a change of +0.6%. In the latest year it moved by -3. Among 20 Maine places of 5,000 or more, that growth ranks 15th; the median place changed by +1.6%. The median place of 5,000+ in Maine has 18,252 people, so Belfast is 38% of it.

Belfast covers 34.05 square miles of land and 4.32 of water, for 205 people per square mile of land. The median Maine place of 5,000+ has 548, so Belfast is less dense than the typical town.

What county Belfast is in

All of Belfast's residents live in Waldo County, which had 40,617 residents in 2024. Belfast holds 17.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Belfast

1 ZIP Code Tabulation Area (ZCTA) overlaps Belfast by at least 10% of the ZCTA's or the city's land: 04915. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Belfast is

The Census internal point of Belfast is at 44.425900, -69.026400. Augusta, the capital, is 38.2 miles WSW in a straight line. The nearest larger place is Rockland, ME (7,060 people), 21.5 miles away. The nearest city of 100,000 or more is Manchester, NH, 156.5 miles away.

Daylight in Belfast

At 44.43° N, Belfast gets about 15 h 33 min of daylight around the June solstice and 8 h 50 min around the December solstice, a swing of 6 h 42 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Belfast

The eight nearest incorporated places of 1,000+ in Maine, measured between internal points. The closest is Rockland, 21.5 miles away, with 7,060 people.