Nassau County Demographics

A map of Nassau County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	753,995	779,454	54.3%	55.8%
Hispanic	260,047	256,425	18.7%	18.4%
Asian	169,015	163,165	12.2%	11.7%
Black	150,236	147,216	10.8%	10.5%
Multiracial	41,308	35,728	3.0%	2.6%
Native American/Other	14,990	13,786	1.1%	1.0%

Nassau County, New York has an estimated population of 1,389,591, a less than 1% change from the 1,395,774 recorded in the 2020 Census. The population is 54.3% White, 18.7% Hispanic, 12.2% Asian, 10.8% Black, 3.0% Multiracial, and 1.1% Native American/Other. This demographic dot map shows the population of Nassau County, with one dot drawn for each person counted by the Census, color-coded by race.

Nassau has become more racially diverse since the 2020 Census. It is 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 Nassau County, that probability was 62.9% in 2020 and 64.3% in the most recent ACS estimates.

Nassau County is ranked the 6th most populous county in New York, out of 62 counties. Nassau County was ranked the 6th most populous county in the 2020 Census.

Nassau County's White Population

753,995 residents of Nassau County, or 54.3% of the population, identify as White. The share of White residents in Nassau County is comparable to the share in New York overall, where 52.8% of the population is White. Nassau County ranks 57th statewide in terms of White residents as a share of the population, out of 62 counties.

Since the 2020 Census, Nassau County's White population has declined by an estimated 3.3%. White residents' share of Nassau County's population has decreased from 55.8% to 54.3%.

Nassau County is more White than neighboring Queens County (23.2% White), Bronx County (8.7% White), Kings County (36.1% White), New York County (45.5% White), and Westchester County (49.2% White).

Nassau County's Black Population

150,236 residents of Nassau County, or 10.8% of the population, identify as Black. The share of Black residents in Nassau County is slightly lower than in New York overall, where 13.4% of the population is Black. Nassau County ranks 10th statewide in terms of Black residents as a share of the population, out of 62 counties.

Since the 2020 Census, Nassau County's Black population has grown by an estimated 2.1%. Black residents' share of Nassau County's population has remained roughly unchanged at 10.8%.

Nassau County is less Black than neighboring Queens County (16.3% Black), Bronx County (28.7% Black), Kings County (26.6% Black), New York County (12.5% Black), and Westchester County (12.7% Black).

Nassau County's Asian Population

169,015 residents of Nassau County, or 12.2% of the population, identify as Asian. The share of Asian residents in Nassau County is slightly higher than in New York overall, where 9% of the population is Asian. Nassau County ranks 5th statewide in terms of Asian residents as a share of the population, out of 62 counties.

Since the 2020 Census, Nassau County's Asian population has grown by an estimated 3.6%. Asian residents' share of Nassau County's population has increased from 11.7% to 12.2%.

Nassau County is more Asian than neighboring Bronx County (4% Asian), Kings County (12.1% Asian), and Westchester County (6.2% Asian). Nassau County is less Asian than neighboring Queens County (25.9% Asian), and New York County (12.4% Asian).

Nassau County's Hispanic Population

260,047 residents of Nassau County, or 18.7% of the population, identify as Hispanic. The share of Hispanic residents in Nassau County is comparable to the share in New York overall, where 19.8% of the population is Hispanic. Nassau County ranks 10th statewide in terms of Hispanic residents as a share of the population, out of 62 counties.

Since the 2020 Census, Nassau County's Hispanic population has grown by an estimated 1.4%. Hispanic residents' share of Nassau County's population has remained roughly unchanged at 18.7%.

Nassau County is less Hispanic than neighboring Queens County (28.1% Hispanic), Bronx County (55.1% Hispanic), Kings County (19% Hispanic), New York County (24.4% Hispanic), and Westchester County (27.4% Hispanic).

Nassau County's Native American/Other Population

14,990 residents of Nassau County, or 1.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Nassau County is comparable to the share in New York overall, where 1.2% of the population is Native American/Other. Nassau County ranks 14th statewide in terms of Native American/Other residents as a share of the population, out of 62 counties.

Since the 2020 Census, Nassau County's Native American/Other population has grown by an estimated 8.7%. Native American/Other residents' share of Nassau County's population has remained roughly unchanged at 1.1%.

Nassau County is less Native American/Other than neighboring Queens County (2.7% Native American/Other), Bronx County (1.3% Native American/Other), Kings County (1.3% Native American/Other), and Westchester County (1.3% Native American/Other).

Nassau County's Multiracial Population

41,308 residents of Nassau County, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in Nassau County is comparable to the share in New York overall, where 3.8% of the population is Multiracial. Nassau County ranks 59th statewide in terms of Multiracial residents as a share of the population, out of 62 counties.

Since the 2020 Census, Nassau County's Multiracial population has grown by an estimated 15.6%. Multiracial residents' share of Nassau County's population has remained roughly unchanged at 3.0%.

Nassau County is more Multiracial than neighboring Bronx County (2.2% Multiracial). Nassau County is less Multiracial than neighboring Queens County (3.8% Multiracial), Kings County (5% Multiracial), New York County (4% Multiracial), and Westchester County (3.3% 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.