Belfast, ME Demographics

A map of Belfast's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	6,272	6,444	89.8%	92.9%
Multiracial	543	272	7.8%	3.9%
Hispanic	138	91	2.0%	1.3%
Asian	33	56	0.5%	0.8%
Black	0	31	0.0%	0.4%
Native American/Other	0	44	0.0%	0.6%

Belfast, Maine has an estimated population of 6,986, a less than 1% change from the 6,938 recorded in the 2020 Census. The population is 89.8% White, 7.8% Multiracial, 2.0% Hispanic, 0.5% Asian, 0.0% Black, and 0.0% Native American/Other. This demographic dot map shows the population of Belfast, with one dot drawn for each person counted by the Census, color-coded by race.

Belfast has become considerably more racially diverse since the 2020 Census. It is about as diverse as Maine overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Belfast, that probability was 13.6% in 2020 and 18.8% in the most recent ACS estimates.

Belfast is ranked the 24th most populous place in Maine, out of 155 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Belfast was ranked the 22nd most populous place in the 2020 Census.

Belfast's White Population

6,272 residents of Belfast, or 89.8% of the population, identify as White. The share of White residents in Belfast is comparable to the share in Maine overall, where 89.9% of the population is White. Belfast ranks 56th statewide in terms of White residents as a share of the population, out of 155 places.

Since the 2020 Census, Belfast's White population has declined by an estimated 2.7%. White residents' share of Belfast's population has decreased from 92.9% to 89.8%.

Belfast is more White than neighboring Castine (85.4% White). Belfast is less White than neighboring Searsport (97% White), Camden (92.5% White), Winterport (94.7% White), and Bucksport (98.5% White).

Belfast's Black Population

0 residents of Belfast, or 0.0% of the population, identify as Black. The share of Black residents in Belfast is comparable to the share in Maine overall, where 1.8% of the population is Black. Belfast ranks 93rd statewide in terms of Black residents as a share of the population, out of 155 places.

Since the 2020 Census, Belfast's Black population has declined by an estimated 100.0%. Black residents' share of Belfast's population has remained roughly unchanged at 0.0%.

Belfast is less Black than neighboring Searsport (1.1% Black), and Castine (4% Black).

Belfast's Asian Population

33 residents of Belfast, or 0.5% of the population, identify as Asian. The share of Asian residents in Belfast is comparable to the share in Maine overall, where 1.1% of the population is Asian. Belfast ranks 70th statewide in terms of Asian residents as a share of the population, out of 155 places.

Since the 2020 Census, Belfast's Asian population has declined by an estimated 41.1%. Asian residents' share of Belfast's population has remained roughly unchanged at 0.5%.

Belfast is more Asian than neighboring Searsport (0% Asian), Camden (0% Asian), Castine (0% Asian), Winterport (0% Asian), and Bucksport (0% Asian).

Belfast's Hispanic Population

138 residents of Belfast, or 2.0% of the population, identify as Hispanic. The share of Hispanic residents in Belfast is comparable to the share in Maine overall, where 2.2% of the population is Hispanic. Belfast ranks 104th statewide in terms of Hispanic residents as a share of the population, out of 155 places.

Since the 2020 Census, Belfast's Hispanic population has grown by an estimated 51.6%. Hispanic residents' share of Belfast's population has increased from 1.3% to 2.0%.

Belfast is more Hispanic than neighboring Searsport (0.7% Hispanic), Winterport (0.6% Hispanic), and Bucksport (1.5% Hispanic). Belfast is less Hispanic than neighboring Camden (5% Hispanic), and Castine (5.5% Hispanic).

Belfast's Native American/Other Population

0 residents of Belfast, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Belfast is comparable to the share in Maine overall, where 0.7% of the population is Native American/Other. Belfast ranks 91st statewide in terms of Native American/Other residents as a share of the population, out of 155 places.

Since the 2020 Census, Belfast's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Belfast's population has decreased from 0.6% to 0.0%.

Belfast's Multiracial Population

543 residents of Belfast, or 7.8% of the population, identify as Multiracial. The share of Multiracial residents in Belfast is slightly higher than in Maine overall, where 4.2% of the population is Multiracial. Belfast ranks 72nd statewide in terms of Multiracial residents as a share of the population, out of 155 places.

Since the 2020 Census, Belfast's Multiracial population has grown by an estimated 99.6%. Multiracial residents' share of Belfast's population has increased from 3.9% to 7.8%.

Belfast is more Multiracial than neighboring Searsport (1.3% Multiracial), Camden (2.4% Multiracial), Castine (5% Multiracial), Winterport (4.7% Multiracial), and Bucksport (0% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.