Population By Race and Ethnicity in Suffolk County, NY in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 1,491,997 population of Suffolk County, New York comprised of 273,911 people who identified as Hispanic (18.36%), and 1,218,086 people who identified as Non-Hispanic (81.64%).

Race: The White Alone population was the largest racial group in Suffolk County, New York with a population of 1,270,163 (85.13%); Black or African American Alone population was the second largest racial group with a population of 125,162 (8.39%); and Asian Alone was the third largest racial group with a population of 59,048 (3.96%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Suffolk County, New York in 2015, with a population of 1,031,259 (69.12%); the second largest ethnic group was White Alone - Hispanic with a population of 238,904 (16.01%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 106,811 (7.16%).

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 2015
Total Population:
Race in Suffolk County, NY in 2015
Total Population:
Ethnicity in Suffolk County, NY in 2015
Total Population:
Population By Race in Suffolk , NY in 2015
Race Population Percentage
Black or African American Alone 125,162 8.39%
White Alone 1,270,163 85.13%
American Indian and Alaska Native Alone 8,997 0.6%
Asian Alone 59,048 3.96%
Native Hawaiian And Pacific Islander Alone 1,329 0.09%
Two Or More Races 27,298 1.83%
Population By Ethnicity in Suffolk , NY in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 18,351 1.23%
White Alone - Hispanic 238,904 16.01%
American Indian and Alaska Native Alone - Hispanic 6,023 0.4%
Asian Alone - Hispanic 1,990 0.13%
Native Hawaiian And Pacific Islander Alone - Hispanic 978 0.07%
Two Or More Races - Hispanic 7,665 0.51%
Black or African American Alone - Non Hispanic 106,811 7.16%
White Alone - Non Hispanic 1,031,259 69.12%
American Indian and Alaska Native Alone - Non Hispanic 2,974 0.2%
Asian Alone - Non Hispanic 57,058 3.82%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 351 0.02%
Two Or More Races - Non Hispanic 19,633 1.32%