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

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the 1,533,815 population of Suffolk County, New York comprised of 340,025 people who identified as Hispanic (22.17%), and 1,193,790 people who identified as Non-Hispanic (77.83%).

Race: The White Alone population was the largest racial group in Suffolk County, New York with a population of 1,279,347 (83.41%); Black or African American Alone population was the second largest racial group with a population of 140,274 (9.15%); and Asian Alone was the third largest racial group with a population of 69,118 (4.51%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Suffolk County, New York in 2021, with a population of 986,377 (64.31%); the second largest ethnic group was White Alone - Hispanic with a population of 292,970 (19.1%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 115,581 (7.54%).

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.

See this for other years:
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 140,274 9.15%
White Alone 1,279,347 83.41%
American Indian and Alaska Native Alone 11,131 0.73%
Asian Alone 69,118 4.51%
Native Hawaiian And Pacific Islander Alone 1,779 0.12%
Two Or More Races 32,166 2.1%
Population By Ethnicity in Suffolk , NY in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 24,693 1.61%
White Alone - Hispanic 292,970 19.1%
American Indian and Alaska Native Alone - Hispanic 8,096 0.53%
Asian Alone - Hispanic 2,815 0.18%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,373 0.09%
Two Or More Races - Hispanic 10,078 0.66%
Black or African American Alone - Non Hispanic 115,581 7.54%
White Alone - Non Hispanic 986,377 64.31%
American Indian and Alaska Native Alone - Non Hispanic 3,035 0.2%
Asian Alone - Non Hispanic 66,303 4.32%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 406 0.03%
Two Or More Races - Non Hispanic 22,088 1.44%