Population By Race and Ethnicity in Suffolk County, NY in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 1,482,275 population of Suffolk County, New York comprised of 290,225 people who identified as Hispanic (19.58%), and 1,192,050 people who identified as Non-Hispanic (80.42%).

Race: The White Alone population was the largest racial group in Suffolk County, New York with a population of 1,250,896 (84.39%); Black or African American Alone population was the second largest racial group with a population of 129,113 (8.71%); and Asian Alone was the third largest racial group with a population of 62,499 (4.22%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Suffolk County, New York in 2018, with a population of 998,544 (67.37%); the second largest ethnic group was White Alone - Hispanic with a population of 252,352 (17.02%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 109,282 (7.37%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Suffolk, New York.

You can find similar information for other New York counties, and for New York.

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Hispanics and Non Hispanics in Suffolk County, NY in 2018
Total Population:
Race in Suffolk County, NY in 2018
Total Population:
Ethnicity in Suffolk County, NY in 2018
Total Population:
Population By Race in Suffolk , NY in 2018
Race Population Percentage
Black or African American Alone 129,113 8.71%
White Alone 1,250,896 84.39%
American Indian and Alaska Native Alone 9,410 0.64%
Asian Alone 62,499 4.22%
Native Hawaiian And Pacific Islander Alone 1,493 0.1%
Two Or More Races 28,864 1.95%
Population By Ethnicity in Suffolk , NY in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 19,831 1.34%
White Alone - Hispanic 252,352 17.02%
American Indian and Alaska Native Alone - Hispanic 6,464 0.44%
Asian Alone - Hispanic 2,177 0.15%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,109 0.08%
Two Or More Races - Hispanic 8,292 0.56%
Black or African American Alone - Non Hispanic 109,282 7.37%
White Alone - Non Hispanic 998,544 67.37%
American Indian and Alaska Native Alone - Non Hispanic 2,946 0.2%
Asian Alone - Non Hispanic 60,322 4.07%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 384 0.03%
Two Or More Races - Non Hispanic 20,572 1.39%