Belfast, NY Demographics

A map of Belfast's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	627	709	99.1%	95.2%
Multiracial	5	28	0.8%	3.8%
Native American/Other	1	4	0.2%	0.5%
Black	0	2	0.0%	0.3%
Asian	0	1	0.0%	0.1%
Hispanic	0	1	0.0%	0.1%

Belfast, New York has an estimated population of 633, a large decrease from the 745 recorded in the 2020 Census. The population is 99.1% White, 0.8% Multiracial, 0.2% Native American/Other, 0.0% Black, 0.0% Asian, and 0.0% Hispanic. 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 less racially diverse since the 2020 Census. It is considerably less diverse than New York 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 9.3% in 2020 and 1.9% in the most recent ACS estimates.

Belfast is ranked the 992nd most populous place in New York, out of 1,291 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 934th most populous place in the 2020 Census.

Belfast's White Population

627 residents of Belfast, or 99.1% of the population, identify as White. The share of White residents in Belfast is significantly higher than in New York overall, where 52.8% of the population is White. Belfast ranks 76th statewide in terms of White residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Belfast's White population has declined by an estimated 11.6%. White residents' share of Belfast's population has increased from 95.2% to 99.1%.

Belfast is more White than neighboring Houghton (88.1% White), Angelica (93.1% White), Fillmore (96.3% White), Friendship (95.2% White), and Rushford (88.9% 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 considerably lower than in New York overall, where 13.4% of the population is Black. Belfast ranks 1109th statewide in terms of Black residents as a share of the population, out of 1,291 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 Houghton (4.5% Black), and Friendship (0.6% Black).

Belfast's Asian Population

0 residents of Belfast, or 0.0% of the population, identify as Asian. The share of Asian residents in Belfast is lower than in New York overall, where 9% of the population is Asian. Belfast ranks 1121st statewide in terms of Asian residents as a share of the population, out of 1,291 places.

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

Belfast is less Asian than neighboring Houghton (3.2% Asian), Angelica (0.7% Asian), Fillmore (1.8% Asian), and Rushford (1.6% Asian).

Belfast's Hispanic Population

0 residents of Belfast, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Belfast is significantly lower than in New York overall, where 19.8% of the population is Hispanic. Belfast ranks 1279th statewide in terms of Hispanic residents as a share of the population, out of 1,291 places.

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

Belfast is less Hispanic than neighboring Houghton (3.1% Hispanic), Angelica (1.7% Hispanic), and Friendship (2.5% Hispanic).

Belfast's Native American/Other Population

1 residents of Belfast, or 0.2% 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 New York overall, where 1.2% of the population is Native American/Other. Belfast ranks 721st statewide in terms of Native American/Other residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Belfast's Native American/Other population has declined by an estimated 75.0%. Native American/Other residents' share of Belfast's population has remained roughly unchanged at 0.2%.

Belfast is more Native American/Other than neighboring Fillmore (0% Native American/Other), Friendship (0% Native American/Other), and Rushford (0% Native American/Other). Belfast is less Native American/Other than neighboring Houghton (0.3% Native American/Other), and Angelica (0.5% Native American/Other).

Belfast's Multiracial Population

5 residents of Belfast, or 0.8% of the population, identify as Multiracial. The share of Multiracial residents in Belfast is slightly lower than in New York overall, where 3.8% of the population is Multiracial. Belfast ranks 524th statewide in terms of Multiracial residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Belfast's Multiracial population has declined by an estimated 82.1%. Multiracial residents' share of Belfast's population has decreased from 3.8% to 0.8%.

Belfast is less Multiracial than neighboring Angelica (4.1% Multiracial), Fillmore (1.8% Multiracial), Friendship (1.7% Multiracial), and Rushford (9.5% 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.