Population By Race and Ethnicity in Mercer County, NJ in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 367,717 population of Mercer County, New Jersey comprised of 55,679 people who identified as Hispanic (15.14%), and 312,038 people who identified as Non-Hispanic (84.86%).

Race: The White Alone population was the largest racial group in Mercer County, New Jersey with a population of 246,438 (67.02%); Black or African American Alone population was the second largest racial group with a population of 77,619 (21.11%); and Asian Alone was the third largest racial group with a population of 33,803 (9.19%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Mercer County, New Jersey in 2010, with a population of 200,397 (54.5%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 72,164 (19.63%); and the third largest ethnic group was White Alone - Hispanic with a population of 46,041 (12.52%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Mercer, 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 Mercer County, NJ in 2010
Total Population:
Race in Mercer County, NJ in 2010
Total Population:
Ethnicity in Mercer County, NJ in 2010
Total Population:
Population By Race in Mercer , NJ in 2010
Race Population Percentage
Black or African American Alone 77,619 21.11%
White Alone 246,438 67.02%
American Indian and Alaska Native Alone 2,160 0.59%
Asian Alone 33,803 9.19%
Native Hawaiian And Pacific Islander Alone 657 0.18%
Two Or More Races 7,040 1.92%
Population By Ethnicity in Mercer , NJ in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 5,455 1.48%
White Alone - Hispanic 46,041 12.52%
American Indian and Alaska Native Alone - Hispanic 1,614 0.44%
Asian Alone - Hispanic 546 0.15%
Native Hawaiian And Pacific Islander Alone - Hispanic 502 0.14%
Two Or More Races - Hispanic 1,521 0.41%
Black or African American Alone - Non Hispanic 72,164 19.63%
White Alone - Non Hispanic 200,397 54.5%
American Indian and Alaska Native Alone - Non Hispanic 546 0.15%
Asian Alone - Non Hispanic 33,257 9.04%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 155 0.04%
Two Or More Races - Non Hispanic 5,519 1.5%