Mercer, New Jersey Voting-age Population By Race and Ethnicity from Census 2020

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 304.67K voting-age population of Mercer, NJ residents comprised of 58.35K residents who identified as Hispanic or Latino (19.15%), and 246.32K residents who identified as Non-Hispanic (80.85%).

Race: The White Alone voting-age population was the largest racial group in Mercer, NJ, with a voting-age population of 150.82K (49.50%). The Black or African American Alone voting-age population was the second largest racial group in Mercer, NJ, with a voting-age population of 57.73K (18.95%). The Asian Alone voting-age population was the third largest racial group in Mercer, NJ, with a voting-age population of 37.21K (12.21%). The smallest racial group in Mercer, NJ was Native Hawaiian And Pacific Islander Alone with a voting-age population of 150 (0.05%).

Ethnicity: The Non-Hispanic - White Alone voting-age population was the largest ethnic group in Mercer, NJ, with a voting-age population of 144.11K (47.30%). The Non-Hispanic - Black Alone voting-age population was the second largest ethnic group in Mercer, NJ, with a voting-age population of 56.29K (18.47%). The Non-Hispanic - Asian Alone voting-age population was the third largest ethnic group in Mercer, NJ, with a voting-age population of 37.08K (12.17%). The smallest ethnic group in Mercer, NJ was Hispanic - Native Hawaiian & Pac. Islander with a voting-age population of 61 (0.02%).

The charts and tables below shows the voting-age population and percentage of each racial group and ethnicity group in Mercer, New Jersey from the 2020 decennial census.

You can see similar information for other New Jersey counties and also for the state of New Jersey.

Mercer, NJ Voting-age Hispanics and Non Hispanics Population in Census 2020
Total Voting-age Population:
Mercer, NJ Voting-age Racial Groups in Census 2020
Total Voting-age Population:
Mercer, NJ Voting-age Ethnicity Groups in Census 2020
Total Voting-age Population:
Mercer, NJ Voting-age Population of Racial Groups in Census 2020
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Race Voting-age Population % of County Voting-age Population
Black or African American Alone 57732 18.95
White Alone 150825 49.50
American Indian and Alaska Native Alone 1750 0.57
Asian Alone 37207 12.21
Native Hawaiian And Pacific Islander Alone 150 0.05
Some Other Race Alone 34862 11.44
Two Or More Races 22146 7.27
Mercer, NJ Voting-age Population of Ethnicity Groups in Census 2020
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Ethnicity Voting-age Population % of County Voting-age Population
Non-Hispanic - White Alone 144111 47.30
Non-Hispanic - Black Alone 56286 18.47
Non-Hispanic - Asian Alone 37076 12.17
Hispanic - Some Other Race Alone 33656 11.05
Hispanic - Two or More Races 14910 4.89
Non-Hispanic - Two or More Races 7236 2.38
Hispanic - White Alone 6714 2.20
Hispanic - Black Alone 1446 0.48
Hispanic - American Indian & Alaska Native 1435 0.47
Non-Hispanic - Some Other Race Alone 1206 0.40
Non-Hispanic - American Indian & Alaska Native 315 0.10
Hispanic - Asian Alone 131 0.04
Non-Hispanic - Native Hawaiian & Pac. Islander 89 0.03
Hispanic - Native Hawaiian & Pac. Islander 61 0.02