Nassau County Population 2017

Nassau County's estimated population is 1,361,500 with a growth rate of 0.13% in the past year according to the most recent United States census data. Nassau County is the 6th largest county in New York.

Year Population Growth Growth Rate
20161,361,5001,7980.13%
20151,359,7021,9030.14%
20141,357,7993,5410.26%
20131,354,2583,5100.26%
20121,350,7483,9330.29%
20111,346,8154,9360.37%
20101,341,87954,5314.24%
19901,287,348-34,234-2.59%
19801,321,582-106,498-7.46%
19701,428,080127,9099.84%
19601,300,171627,40693.26%
1950672,765266,01765.40%
1940406,748103,69534.22%
1930303,053176,933140.29%
1920126,12042,19050.27%
191083,93028,48251.37%
190055,4480.00%

Nassau County Population Growth

Population Data via

Nassau County Race Data

Race Population Percentage
White1,029,34075.60%
Black or African American171,69712.61%
Asian126,6479.30%
Two or More Races24,1311.77%
American Indian and Alaska Native6,6330.49%
Native Hawaiian and Other Pacific Islander1,2540.09%

Nassau County Population Pyramid

0k10k20k30k40k50kNassau County Male Population0k10k20k30k40k50kNassau County Female Population

Population of Cities in Nassau County

City 2010 Census 2016 Estimated Growth Growth Rate
Hempstead540015555515542.88%
Freeport42848432794311.01%
Valley Stream37363376733100.83%
Long Beach33327337173901.17%
Glen Cove26952273413891.44%
Rockville Centre24042245715292.20%
Garden City22315225452301.03%
Lynbrook1948119567860.44%
Mineola18854192453912.07%
Massapequa Park17006172021961.15%
Floral Park1588415951670.42%
Westbury15039153843452.29%
Woodbury10793109861931.79%
Great Neck10066102181521.51%
New Hyde Park97769863870.89%
East Rockaway97449802580.60%
Farmingdale820788576507.92%
Malverne85128544320.38%
Williston Park72587289310.43%
Bayville66686751831.24%
Cedarhurst65856667821.25%
Lawrence643765581211.88%
Sea Cliff50285054260.52%
Island Park464747991523.27%
Old Westbury47084743350.74%
Roslyn27902856662.37%
Atlantic Beach18881908201.06%
South Floral Park17701800301.69%
Mill Neck945969242.54%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990