Port Jefferson, NY Demographics

A map of Port Jefferson's Population by Race

Port Jefferson, New York has an estimated population of 8,091, a slight increase from the 7,962 recorded in the 2020 Census. The population is 78.3% White, 10.5% Hispanic, 6.4% Asian, 3.9% Multiracial, 0.6% Native American/Other, and 0.4% Black. This demographic dot map shows the population of Port Jefferson, with one dot drawn for each person counted by the Census, color-coded by race.

Port Jefferson is about as racially diverse as it was in 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 Port Jefferson, that probability was 36.8% in 2020 and 37.0% in the most recent ACS estimates.

Port Jefferson is ranked the 245th 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). Port Jefferson was ranked the 245th most populous place in the 2020 Census.

Port Jefferson's White Population

6,334 residents of Port Jefferson, or 78.3% of the population, identify as White. The share of White residents in Port Jefferson is significantly higher than in New York overall, where 52.8% of the population is White. Port Jefferson ranks 857th statewide in terms of White residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Port Jefferson's White population has grown by an estimated 1.2%. White residents' share of Port Jefferson's population has remained roughly unchanged at 78.3%.

Port Jefferson is more White than neighboring Port Jefferson Station (58.1% White), Mount Sinai (78% White), and Terryville (68.2% White). Port Jefferson is less White than neighboring Belle Terre (84.9% White), and Poquott (81.4% White).

Port Jefferson's Black Population

31 residents of Port Jefferson, or 0.4% of the population, identify as Black. The share of Black residents in Port Jefferson is considerably lower than in New York overall, where 13.4% of the population is Black. Port Jefferson ranks 670th statewide in terms of Black residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Port Jefferson's Black population has declined by an estimated 71.6%. Black residents' share of Port Jefferson's population has decreased from 1.4% to 0.4%.

Port Jefferson is more Black than neighboring Poquott (0.2% Black). Port Jefferson is less Black than neighboring Belle Terre (4.2% Black), Port Jefferson Station (3.2% Black), Mount Sinai (1.9% Black), and Terryville (4.6% Black).

Port Jefferson's Asian Population

516 residents of Port Jefferson, or 6.4% of the population, identify as Asian. The share of Asian residents in Port Jefferson is slightly lower than in New York overall, where 9% of the population is Asian. Port Jefferson ranks 178th statewide in terms of Asian residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Port Jefferson's Asian population has declined by an estimated 3.9%. Asian residents' share of Port Jefferson's population has remained roughly unchanged at 6.4%.

Port Jefferson is more Asian than neighboring Belle Terre (1.9% Asian), Port Jefferson Station (4.7% Asian), Mount Sinai (3.1% Asian), and Terryville (2.6% Asian).

Port Jefferson's Hispanic Population

851 residents of Port Jefferson, or 10.5% of the population, identify as Hispanic. The share of Hispanic residents in Port Jefferson is lower than in New York overall, where 19.8% of the population is Hispanic. Port Jefferson ranks 411th statewide in terms of Hispanic residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Port Jefferson's Hispanic population has grown by an estimated 19.5%. Hispanic residents' share of Port Jefferson's population has increased from 8.9% to 10.5%.

Port Jefferson is more Hispanic than neighboring Belle Terre (3.6% Hispanic), and Poquott (9% Hispanic). Port Jefferson is less Hispanic than neighboring Port Jefferson Station (31.5% Hispanic), Mount Sinai (14.3% Hispanic), and Terryville (21.9% Hispanic).

Port Jefferson's Native American/Other Population

46 residents of Port Jefferson, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Port Jefferson is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Port Jefferson ranks 574th statewide in terms of Native American/Other residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Port Jefferson's Native American/Other population has declined by an estimated 13.2%. Native American/Other residents' share of Port Jefferson's population has remained roughly unchanged at 0.6%.

Port Jefferson is more Native American/Other than neighboring Port Jefferson Station (0% Native American/Other), and Mount Sinai (0% Native American/Other). Port Jefferson is less Native American/Other than neighboring Belle Terre (1.1% Native American/Other), Poquott (1.1% Native American/Other), and Terryville (1.2% Native American/Other).

Port Jefferson's Multiracial Population

313 residents of Port Jefferson, or 3.9% of the population, identify as Multiracial. The share of Multiracial residents in Port Jefferson is comparable to the share in New York overall, where 3.8% of the population is Multiracial. Port Jefferson ranks 553rd statewide in terms of Multiracial residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Port Jefferson's Multiracial population has grown by an estimated 6.8%. Multiracial residents' share of Port Jefferson's population has remained roughly unchanged at 3.9%.

Port Jefferson is more Multiracial than neighboring Port Jefferson Station (2.6% Multiracial), Poquott (2% Multiracial), Mount Sinai (2.7% Multiracial), and Terryville (1.5% Multiracial). Port Jefferson is less Multiracial than neighboring Belle Terre (4.3% 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.