Mercer County, New Jersey Census 2020 Population By Race and Ethnicity

Updated on April 9, 2023.

According to the data from the US 2020 decennial Census, in April 2020, the 387.34K population of Mercer County, NJ residents comprised of 84.18K residents who identified as Hispanic or Latino (21.73%), and 303.16K residents who identified as Non-Hispanic (78.27%).

Race: The White Alone population was the largest racial group in Mercer County, NJ, with a population of 178.45K (46.07%). The Black or African American Alone population was the second largest racial group in Mercer County, NJ, with a population of 74.99K (19.36%). The Some Other Race Alone population was the third largest racial group in Mercer County, NJ, with a population of 49.57K (12.80%). The smallest racial group in Mercer County, NJ was Native Hawaiian And Pacific Islander Alone with a population of 206 (0.05%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Mercer County, NJ, with a population of 168.58K (43.52%). The Non-Hispanic - Black Alone population was the second largest ethnic group in Mercer County, NJ, with a population of 72.36K (18.68%). The Non-Hispanic - Asian Alone population was the third largest ethnic group in Mercer County, NJ, with a population of 48.33K (12.48%). The smallest ethnic group in Mercer County, NJ was Hispanic - Native Hawaiian & Pac. Islander with a population of 100 (0.03%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in Mercer County, 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.

You may also be interested in:
Mercer County, NJ Census 2020 Total Hispanic and Non-Hispanic Population
New Jersey Census 2020 Population By County for each Race
New Jersey Census 2020 Total Population By County

Data Source: US Census Bureau, 2020 Census.

Mercer County, NJ Hispanics and Non Hispanics Population in Census 2020

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Mercer County, NJ Racial Groups in Census 2020

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Mercer County, NJ Ethnicity Groups in Census 2020

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Mercer County, NJ Population of Racial Groups in Census 2020

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Race	Population	% of County Population
Black or African American Alone	74993	19.36
White Alone	178447	46.07
American Indian and Alaska Native Alone	2442	0.63
Asian Alone	48537	12.53
Native Hawaiian And Pacific Islander Alone	206	0.05
Some Other Race Alone	49572	12.80
Two Or More Races	33143	8.56

Mercer County, NJ Population of Ethnicity Groups in Census 2020

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Ethnicity	Population	% of County Population
Non-Hispanic - White Alone	168580	43.52
Non-Hispanic - Black Alone	72364	18.68
Non-Hispanic - Asian Alone	48330	12.48
Hispanic - Some Other Race Alone	47693	12.31
Hispanic - Two or More Races	21666	5.59
Non-Hispanic - Two or More Races	11477	2.96
Hispanic - White Alone	9867	2.55
Hispanic - Black Alone	2629	0.68
Hispanic - American Indian & Alaska Native	2015	0.52
Non-Hispanic - Some Other Race Alone	1879	0.49
Non-Hispanic - American Indian & Alaska Native	427	0.11
Hispanic - Asian Alone	207	0.05
Non-Hispanic - Native Hawaiian & Pac. Islander	106	0.03
Hispanic - Native Hawaiian & Pac. Islander	100	0.03