Population By Race and Ethnicity in Suffolk County, NY in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 1,478,325 population of Suffolk County, New York comprised of 296,245 people who identified as Hispanic (20.04%), and 1,182,080 people who identified as Non-Hispanic (79.96%).

Race: The White Alone population was the largest racial group in Suffolk County, New York with a population of 1,243,004 (84.08%); Black or African American Alone population was the second largest racial group with a population of 131,066 (8.87%); and Asian Alone was the third largest racial group with a population of 63,561 (4.3%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Suffolk County, New York in 2019, with a population of 986,091 (66.7%); the second largest ethnic group was White Alone - Hispanic with a population of 256,913 (17.38%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 110,499 (7.48%).

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 2019
Total Population:
Race in Suffolk County, NY in 2019
Total Population:
Ethnicity in Suffolk County, NY in 2019
Total Population:
Population By Race in Suffolk , NY in 2019
Race Population Percentage
Black or African American Alone 131,066 8.87%
White Alone 1,243,004 84.08%
American Indian and Alaska Native Alone 9,687 0.66%
Asian Alone 63,561 4.3%
Native Hawaiian And Pacific Islander Alone 1,520 0.1%
Two Or More Races 29,487 2%
Population By Ethnicity in Suffolk , NY in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 20,567 1.39%
White Alone - Hispanic 256,913 17.38%
American Indian and Alaska Native Alone - Hispanic 6,755 0.46%
Asian Alone - Hispanic 2,301 0.16%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,132 0.08%
Two Or More Races - Hispanic 8,577 0.58%
Black or African American Alone - Non Hispanic 110,499 7.48%
White Alone - Non Hispanic 986,091 66.7%
American Indian and Alaska Native Alone - Non Hispanic 2,932 0.2%
Asian Alone - Non Hispanic 61,260 4.14%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 388 0.03%
Two Or More Races - Non Hispanic 20,910 1.41%