Nassau County Population 2018

Nassau County's estimated population is 1,369,514 with a growth rate of 0.27% 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
20171,369,5143,6570.27%
20161,365,8572,9990.22%
20151,362,8582,1550.16%
20141,360,7034,2890.32%
20131,356,4144,2830.32%
20121,352,1314,6480.34%
20111,347,4835,5800.42%
20101,341,90354,5554.24%
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
White1,029,34075.16%
Black or African American171,69712.54%
Asian126,6479.25%
Two or More Races24,1311.76%
American Indian and Alaska Native6,6330.48%
Native Hawaiian and Other Pacific Islander1,2540.09%

Nassau County Population Pyramid

0k10k20k30k40k50k Male Population0k10k20k30k40k50k Female Population8580757065605550454035302520151050
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