Stony Brook, NY Demographics

A map of Stony Brook's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	9,479	10,310	73.7%	76.6%
Asian	1,945	1,667	15.1%	12.4%
Hispanic	904	826	7.0%	6.1%
Black	324	217	2.5%	1.6%
Multiracial	166	379	1.3%	2.8%
Native American/Other	50	68	0.4%	0.5%

Stony Brook, New York has an estimated population of 12,868, a decrease from the 13,467 recorded in the 2020 Census. The population is 73.7% White, 15.1% Asian, 7.0% Hispanic, 2.5% Black, 1.3% Multiracial, and 0.4% Native American/Other. This demographic dot map shows the population of Stony Brook, with one dot drawn for each person counted by the Census, color-coded by race.

Stony Brook has become more 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 Stony Brook, that probability was 39.4% in 2020 and 42.9% in the most recent ACS estimates.

Stony Brook is ranked the 153rd 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). Stony Brook was ranked the 152nd most populous place in the 2020 Census.

Stony Brook's White Population

9,479 residents of Stony Brook, or 73.7% of the population, identify as White. The share of White residents in Stony Brook is significantly higher than in New York overall, where 52.8% of the population is White. Stony Brook ranks 904th statewide in terms of White residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Stony Brook's White population has declined by an estimated 8.1%. White residents' share of Stony Brook's population has decreased from 76.6% to 73.7%.

Stony Brook is more White than neighboring Stony Brook University (35.7% White), and East Setauket (73.2% White). Stony Brook is less White than neighboring Head of the Harbor (74% White), St. James (80.8% White), and Setauket (82.2% White).

Stony Brook's Black Population

324 residents of Stony Brook, or 2.5% of the population, identify as Black. The share of Black residents in Stony Brook is considerably lower than in New York overall, where 13.4% of the population is Black. Stony Brook ranks 606th statewide in terms of Black residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Stony Brook's Black population has grown by an estimated 49.3%. Black residents' share of Stony Brook's population has increased from 1.6% to 2.5%.

Stony Brook is more Black than neighboring Head of the Harbor (1.7% Black), St. James (0.2% Black), and Setauket (2.2% Black). Stony Brook is less Black than neighboring Stony Brook University (7.5% Black).

Stony Brook's Asian Population

1,945 residents of Stony Brook, or 15.1% of the population, identify as Asian. The share of Asian residents in Stony Brook is higher than in New York overall, where 9% of the population is Asian. Stony Brook ranks 83rd statewide in terms of Asian residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Stony Brook's Asian population has grown by an estimated 16.7%. Asian residents' share of Stony Brook's population has increased from 12.4% to 15.1%.

Stony Brook is more Asian than neighboring Head of the Harbor (5.6% Asian), East Setauket (10.6% Asian), St. James (5.7% Asian), and Setauket (7.1% Asian). Stony Brook is less Asian than neighboring Stony Brook University (43.3% Asian).

Stony Brook's Hispanic Population

904 residents of Stony Brook, or 7.0% of the population, identify as Hispanic. The share of Hispanic residents in Stony Brook is considerably lower than in New York overall, where 19.8% of the population is Hispanic. Stony Brook ranks 551st statewide in terms of Hispanic residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Stony Brook's Hispanic population has grown by an estimated 9.4%. Hispanic residents' share of Stony Brook's population has increased from 6.1% to 7.0%.

Stony Brook is more Hispanic than neighboring Setauket (4.7% Hispanic). Stony Brook is less Hispanic than neighboring Stony Brook University (10.6% Hispanic), Head of the Harbor (12.2% Hispanic), East Setauket (8.7% Hispanic), and St. James (11.6% Hispanic).

Stony Brook's Native American/Other Population

50 residents of Stony Brook, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Stony Brook is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Stony Brook ranks 754th statewide in terms of Native American/Other residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Stony Brook's Native American/Other population has declined by an estimated 26.5%. Native American/Other residents' share of Stony Brook's population has remained roughly unchanged at 0.4%.

Stony Brook is more Native American/Other than neighboring Stony Brook University (0.3% Native American/Other), Head of the Harbor (0% Native American/Other), and St. James (0.3% Native American/Other). Stony Brook is less Native American/Other than neighboring Setauket (1.2% Native American/Other).

Stony Brook's Multiracial Population

166 residents of Stony Brook, or 1.3% of the population, identify as Multiracial. The share of Multiracial residents in Stony Brook is slightly lower than in New York overall, where 3.8% of the population is Multiracial. Stony Brook ranks 849th statewide in terms of Multiracial residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Stony Brook's Multiracial population has declined by an estimated 56.2%. Multiracial residents' share of Stony Brook's population has decreased from 2.8% to 1.3%.

Stony Brook is less Multiracial than neighboring Stony Brook University (2.6% Multiracial), Head of the Harbor (6.5% Multiracial), East Setauket (4.6% Multiracial), St. James (1.4% Multiracial), and Setauket (2.6% 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.