Population By Race and Ethnicity in Suffolk County, NY in 2021

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2021, the 1,533,118 population of Suffolk County, New York comprised of 320,983 people who identified as Hispanic (20.94%), and 1,212,135 people who identified as Non-Hispanic (79.06%).

Race: The White Alone population was the largest racial group in Suffolk County, New York with a population of 1,276,576 (83.27%); Black or African American Alone population was the second largest racial group with a population of 141,683 (9.24%); and Asian Alone was the third largest racial group with a population of 70,593 (4.61%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Suffolk County, New York in 2021, with a population of 999,829 (65.22%); the second largest ethnic group was White Alone - Hispanic with a population of 276,747 (18.05%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 118,428 (7.73%).

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 2021
Total Population:
Race in Suffolk County, NY in 2021
Total Population:
Ethnicity in Suffolk County, NY in 2021
Total Population:
Population By Race in Suffolk , NY in 2021
Race Population Percentage
Black or African American Alone 141,683 9.24%
White Alone 1,276,576 83.27%
American Indian and Alaska Native Alone 10,644 0.69%
Asian Alone 70,593 4.61%
Native Hawaiian And Pacific Islander Alone 1,700 0.11%
Two Or More Races 31,922 2.08%
Population By Ethnicity in Suffolk , NY in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 23,255 1.52%
White Alone - Hispanic 276,747 18.05%
American Indian and Alaska Native Alone - Hispanic 7,547 0.49%
Asian Alone - Hispanic 2,629 0.17%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,304 0.09%
Two Or More Races - Hispanic 9,501 0.62%
Black or African American Alone - Non Hispanic 118,428 7.73%
White Alone - Non Hispanic 999,829 65.22%
American Indian and Alaska Native Alone - Non Hispanic 3,097 0.2%
Asian Alone - Non Hispanic 67,964 4.43%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 396 0.03%
Two Or More Races - Non Hispanic 22,421 1.46%