Population By Race and Ethnicity in Mercer County, NJ in 2017

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2017, the 368,489 population of Mercer County, New Jersey comprised of 64,336 people who identified as Hispanic (17.46%), and 304,153 people who identified as Non-Hispanic (82.54%).

Race: The White Alone population was the largest racial group in Mercer County, New Jersey with a population of 235,447 (63.9%); Black or African American Alone population was the second largest racial group with a population of 79,334 (21.53%); and Asian Alone was the third largest racial group with a population of 41,901 (11.37%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Mercer County, New Jersey in 2017, with a population of 183,253 (49.73%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 72,163 (19.58%); and the third largest ethnic group was White Alone - Hispanic with a population of 52,194 (14.16%).

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 2017
Total Population:
Race in Mercer County, NJ in 2017
Total Population:
Ethnicity in Mercer County, NJ in 2017
Total Population:
Population By Race in Mercer , NJ in 2017
Race Population Percentage
Black or African American Alone 79,334 21.53%
White Alone 235,447 63.9%
American Indian and Alaska Native Alone 2,333 0.63%
Asian Alone 41,901 11.37%
Native Hawaiian And Pacific Islander Alone 769 0.21%
Two Or More Races 8,705 2.36%
Population By Ethnicity in Mercer , NJ in 2017
Ethnicity Population Percentage
Black or African American Alone - Hispanic 7,171 1.95%
White Alone - Hispanic 52,194 14.16%
American Indian and Alaska Native Alone - Hispanic 1,750 0.48%
Asian Alone - Hispanic 589 0.16%
Native Hawaiian And Pacific Islander Alone - Hispanic 550 0.15%
Two Or More Races - Hispanic 2,082 0.56%
Black or African American Alone - Non Hispanic 72,163 19.58%
White Alone - Non Hispanic 183,253 49.73%
American Indian and Alaska Native Alone - Non Hispanic 583 0.16%
Asian Alone - Non Hispanic 41,312 11.21%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 219 0.06%
Two Or More Races - Non Hispanic 6,623 1.8%