Sea Cliff, NY Demographics

A map of Sea Cliff's Population by Race

Sea Cliff, New York has an estimated population of 5,033, a less than 1% change from the 5,062 recorded in the 2020 Census. The population is 82.9% White, 11.1% Hispanic, 4.1% Multiracial, 1.1% Black, 0.6% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of Sea Cliff, with one dot drawn for each person counted by the Census, color-coded by race.

Sea Cliff has become 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 Sea Cliff, that probability was 31.3% in 2020 and 29.9% in the most recent ACS estimates.

Sea Cliff is ranked the 353rd 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). Sea Cliff was ranked the 358th most populous place in the 2020 Census.

Sea Cliff's White Population

4,170 residents of Sea Cliff, or 82.9% of the population, identify as White. The share of White residents in Sea Cliff is significantly higher than in New York overall, where 52.8% of the population is White. Sea Cliff ranks 769th statewide in terms of White residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Sea Cliff's White population has remained roughly the same. White residents' share of Sea Cliff's population has increased from 82.2% to 82.9%.

Sea Cliff is more White than neighboring Glen Head (73.2% White), Roslyn Harbor (68.1% White), Port Washington (70.2% White), and Greenvale (72.1% White). Sea Cliff is less White than neighboring Glenwood Landing (85.6% White).

Sea Cliff's Black Population

55 residents of Sea Cliff, or 1.1% of the population, identify as Black. The share of Black residents in Sea Cliff is considerably lower than in New York overall, where 13.4% of the population is Black. Sea Cliff ranks 605th statewide in terms of Black residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Sea Cliff's Black population has declined by an estimated 32.9%. Black residents' share of Sea Cliff's population has decreased from 1.6% to 1.1%.

Sea Cliff is more Black than neighboring Glenwood Landing (0.1% Black), and Greenvale (0% Black). Sea Cliff is less Black than neighboring Glen Head (1.3% Black), Roslyn Harbor (4.5% Black), and Port Washington (1.4% Black).

Sea Cliff's Asian Population

30 residents of Sea Cliff, or 0.6% of the population, identify as Asian. The share of Asian residents in Sea Cliff is lower than in New York overall, where 9% of the population is Asian. Sea Cliff ranks 378th statewide in terms of Asian residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Sea Cliff's Asian population has declined by an estimated 79.7%. Asian residents' share of Sea Cliff's population has decreased from 2.9% to 0.6%.

Sea Cliff is less Asian than neighboring Glenwood Landing (4.5% Asian), Glen Head (2.9% Asian), Roslyn Harbor (17.8% Asian), Port Washington (9.9% Asian), and Greenvale (17% Asian).

Sea Cliff's Hispanic Population

560 residents of Sea Cliff, or 11.1% of the population, identify as Hispanic. The share of Hispanic residents in Sea Cliff is lower than in New York overall, where 19.8% of the population is Hispanic. Sea Cliff ranks 393rd statewide in terms of Hispanic residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Sea Cliff's Hispanic population has grown by an estimated 17.9%. Hispanic residents' share of Sea Cliff's population has increased from 9.4% to 11.1%.

Sea Cliff is more Hispanic than neighboring Glenwood Landing (9.9% Hispanic), Roslyn Harbor (7.7% Hispanic), and Greenvale (9.3% Hispanic). Sea Cliff is less Hispanic than neighboring Glen Head (17.2% Hispanic), and Port Washington (15.1% Hispanic).

Sea Cliff's Native American/Other Population

12 residents of Sea Cliff, 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 Sea Cliff is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Sea Cliff ranks 969th statewide in terms of Native American/Other residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Sea Cliff's Native American/Other population has declined by an estimated 29.4%. Native American/Other residents' share of Sea Cliff's population has remained roughly unchanged at 0.2%.

Sea Cliff is more Native American/Other than neighboring Glenwood Landing (0% Native American/Other), Roslyn Harbor (0% Native American/Other), and Greenvale (0% Native American/Other). Sea Cliff is less Native American/Other than neighboring Glen Head (2.6% Native American/Other).

Sea Cliff's Multiracial Population

206 residents of Sea Cliff, or 4.1% of the population, identify as Multiracial. The share of Multiracial residents in Sea Cliff is comparable to the share in New York overall, where 3.8% of the population is Multiracial. Sea Cliff ranks 586th statewide in terms of Multiracial residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Sea Cliff's Multiracial population has grown by an estimated 14.4%. Multiracial residents' share of Sea Cliff's population has remained roughly unchanged at 4.1%.

Sea Cliff is more Multiracial than neighboring Glenwood Landing (0% Multiracial), Glen Head (2.9% Multiracial), Roslyn Harbor (1.9% Multiracial), Port Washington (3.2% Multiracial), and Greenvale (1.6% 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.