Population By Race and Ethnicity in Middlesex County, NJ in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 825,471 population of Middlesex County, New Jersey comprised of 166,443 people who identified as Hispanic (20.16%), and 659,028 people who identified as Non-Hispanic (79.84%).

Race: The White Alone population was the largest racial group in Middlesex County, New Jersey with a population of 509,538 (61.73%); Asian Alone population was the second largest racial group with a population of 198,912 (24.1%); and Black or African American Alone was the third largest racial group with a population of 93,978 (11.39%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Middlesex County, New Jersey in 2015, with a population of 370,824 (44.92%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 197,099 (23.88%); and the third largest ethnic group was White Alone - Hispanic with a population of 138,714 (16.8%).

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

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

See this for other years:
Hispanics and Non Hispanics in Middlesex County, NJ in 2015
Total Population:
Race in Middlesex County, NJ in 2015
Total Population:
Ethnicity in Middlesex County, NJ in 2015
Total Population:
Population By Race in Middlesex , NJ in 2015
Race Population Percentage
Black or African American Alone 93,978 11.39%
White Alone 509,538 61.73%
American Indian and Alaska Native Alone 5,373 0.65%
Asian Alone 198,912 24.1%
Native Hawaiian And Pacific Islander Alone 852 0.1%
Two Or More Races 16,818 2.04%
Population By Ethnicity in Middlesex , NJ in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 16,068 1.95%
White Alone - Hispanic 138,714 16.8%
American Indian and Alaska Native Alone - Hispanic 3,946 0.48%
Asian Alone - Hispanic 1,813 0.22%
Native Hawaiian And Pacific Islander Alone - Hispanic 588 0.07%
Two Or More Races - Hispanic 5,314 0.64%
Black or African American Alone - Non Hispanic 77,910 9.44%
White Alone - Non Hispanic 370,824 44.92%
American Indian and Alaska Native Alone - Non Hispanic 1,427 0.17%
Asian Alone - Non Hispanic 197,099 23.88%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 264 0.03%
Two Or More Races - Non Hispanic 11,504 1.39%