Seaford, NY Demographics

A map of Seaford's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	12,756	13,051	82.0%	85.6%
Hispanic	1,312	1,239	8.4%	8.1%
Asian	618	428	4.0%	2.8%
Black	545	111	3.5%	0.7%
Multiracial	166	354	1.1%	2.3%
Native American/Other	152	68	1.0%	0.4%

Seaford, New York has an estimated population of 15,549, a slight increase from the 15,251 recorded in the 2020 Census. The population is 82.0% White, 8.4% Hispanic, 4.0% Asian, 3.5% Black, 1.1% Multiracial, and 1.0% Native American/Other. This demographic dot map shows the population of Seaford, with one dot drawn for each person counted by the Census, color-coded by race.

Seaford has become considerably 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 Seaford, that probability was 26.0% in 2020 and 31.7% in the most recent ACS estimates.

Seaford is ranked the 125th 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). Seaford was ranked the 128th most populous place in the 2020 Census.

Seaford's White Population

12,756 residents of Seaford, or 82.0% of the population, identify as White. The share of White residents in Seaford is significantly higher than in New York overall, where 52.8% of the population is White. Seaford ranks 653rd statewide in terms of White residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Seaford's White population has declined by an estimated 2.3%. White residents' share of Seaford's population has decreased from 85.6% to 82.0%.

Seaford is more White than neighboring North Wantagh (77.7% White). Seaford is less White than neighboring Wantagh (83.4% White), Massapequa (86.8% White), Bellmore (84.2% White), and North Massapequa (86% White).

Seaford's Black Population

545 residents of Seaford, or 3.5% of the population, identify as Black. The share of Black residents in Seaford is lower than in New York overall, where 13.4% of the population is Black. Seaford ranks 884th statewide in terms of Black residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Seaford's Black population has grown by an estimated 391.0%. Black residents' share of Seaford's population has increased from 0.7% to 3.5%.

Seaford is more Black than neighboring Wantagh (0.6% Black), Massapequa (1.1% Black), North Wantagh (1.7% Black), Bellmore (1.3% Black), and North Massapequa (0.2% Black).

Seaford's Asian Population

618 residents of Seaford, or 4.0% of the population, identify as Asian. The share of Asian residents in Seaford is slightly lower than in New York overall, where 9% of the population is Asian. Seaford ranks 389th statewide in terms of Asian residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Seaford's Asian population has grown by an estimated 44.4%. Asian residents' share of Seaford's population has increased from 2.8% to 4.0%.

Seaford is more Asian than neighboring Wantagh (3.8% Asian), Massapequa (1.7% Asian), North Wantagh (2.1% Asian), Bellmore (3.2% Asian), and North Massapequa (1.9% Asian).

Seaford's Hispanic Population

1,312 residents of Seaford, or 8.4% of the population, identify as Hispanic. The share of Hispanic residents in Seaford is considerably lower than in New York overall, where 19.8% of the population is Hispanic. Seaford ranks 444th statewide in terms of Hispanic residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Seaford's Hispanic population has grown by an estimated 5.9%. Hispanic residents' share of Seaford's population has remained roughly unchanged at 8.4%.

Seaford is more Hispanic than neighboring Bellmore (8.1% Hispanic). Seaford is less Hispanic than neighboring Wantagh (9.5% Hispanic), Massapequa (8.9% Hispanic), North Wantagh (14.8% Hispanic), and North Massapequa (9.6% Hispanic).

Seaford's Native American/Other Population

152 residents of Seaford, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Seaford is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Seaford ranks 835th statewide in terms of Native American/Other residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Seaford's Native American/Other population has grown by an estimated 123.5%. Native American/Other residents' share of Seaford's population has increased from 0.4% to 1.0%.

Seaford is more Native American/Other than neighboring Wantagh (0.5% Native American/Other), Massapequa (0.1% Native American/Other), North Wantagh (0.6% Native American/Other), Bellmore (0.5% Native American/Other), and North Massapequa (0.5% Native American/Other).

Seaford's Multiracial Population

166 residents of Seaford, or 1.1% of the population, identify as Multiracial. The share of Multiracial residents in Seaford is slightly lower than in New York overall, where 3.8% of the population is Multiracial. Seaford ranks 1058th statewide in terms of Multiracial residents as a share of the population, out of 1,291 places.

Since the 2020 Census, Seaford's Multiracial population has declined by an estimated 53.1%. Multiracial residents' share of Seaford's population has decreased from 2.3% to 1.1%.

Seaford is less Multiracial than neighboring Wantagh (2.1% Multiracial), Massapequa (1.5% Multiracial), North Wantagh (3.1% Multiracial), Bellmore (2.7% Multiracial), and North Massapequa (1.8% 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.