Population By Race and Ethnicity in Mercer County, NJ in 2012

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2012, the 368,628 population of Mercer County, New Jersey comprised of 57,899 people who identified as Hispanic (15.71%), and 310,729 people who identified as Non-Hispanic (84.29%).

Race: The White Alone population was the largest racial group in Mercer County, New Jersey with a population of 244,451 (66.31%); Black or African American Alone population was the second largest racial group with a population of 78,095 (21.19%); and Asian Alone was the third largest racial group with a population of 35,770 (9.7%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Mercer County, New Jersey in 2012, with a population of 196,666 (53.35%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 72,281 (19.61%); and the third largest ethnic group was White Alone - Hispanic with a population of 47,785 (12.96%).

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 2012
Total Population:
Race in Mercer County, NJ in 2012
Total Population:
Ethnicity in Mercer County, NJ in 2012
Total Population:
Population By Race in Mercer , NJ in 2012
Race Population Percentage
Black or African American Alone 78,095 21.19%
White Alone 244,451 66.31%
American Indian and Alaska Native Alone 2,177 0.59%
Asian Alone 35,770 9.7%
Native Hawaiian And Pacific Islander Alone 689 0.19%
Two Or More Races 7,446 2.02%
Population By Ethnicity in Mercer , NJ in 2012
Ethnicity Population Percentage
Black or African American Alone - Hispanic 5,814 1.58%
White Alone - Hispanic 47,785 12.96%
American Indian and Alaska Native Alone - Hispanic 1,628 0.44%
Asian Alone - Hispanic 530 0.14%
Native Hawaiian And Pacific Islander Alone - Hispanic 502 0.14%
Two Or More Races - Hispanic 1,640 0.45%
Black or African American Alone - Non Hispanic 72,281 19.61%
White Alone - Non Hispanic 196,666 53.35%
American Indian and Alaska Native Alone - Non Hispanic 549 0.15%
Asian Alone - Non Hispanic 35,240 9.56%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 187 0.05%
Two Or More Races - Non Hispanic 5,806 1.58%