Population By Race and Ethnicity in Mercer County, NJ in 2011

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2011, the 367,407 population of Mercer County, New Jersey comprised of 56,964 people who identified as Hispanic (15.5%), and 310,443 people who identified as Non-Hispanic (84.5%).

Race: The White Alone population was the largest racial group in Mercer County, New Jersey with a population of 244,927 (66.66%); Black or African American Alone population was the second largest racial group with a population of 77,733 (21.16%); and Asian Alone was the third largest racial group with a population of 34,671 (9.44%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Mercer County, New Jersey in 2011, with a population of 197,863 (53.85%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 72,090 (19.62%); and the third largest ethnic group was White Alone - Hispanic with a population of 47,064 (12.81%).

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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Mercer County, NJ in 2011

Total Population:367,407

Non Hispanic (84.5%)

Hispanic (15.5%)

Race in Mercer County, NJ in 2011

Total Population:367,407

White Alone (66.66%)

Black or African American Alone (21.16%)

Asian Alone (9.44%)

Two or more races (1.97%)

American Indian and Alaska Native Alone (0.59%)

Native Hawaiian And Pacific Islander Alone (0.18%)

Ethnicity in Mercer County, NJ in 2011

Total Population:367,407

Non-Hispanic White Alone (53.85%)

Non-Hispanic Black or African American Alone (19.62%)

Hispanic White Alone (12.81%)

Non-Hispanic Asian Alone (9.29%)

All Other Ethnicities (2.89%)

Hispanic Black or African American Alone (1.54%)

Population By Race in Mercer , NJ in 2011

Race	Population	Percentage
White Alone	244,927	66.66%
Black or African American Alone	77,733	21.16%
Asian Alone	34,671	9.44%
Two Or More Races	7,220	1.97%
American Indian and Alaska Native Alone	2,184	0.59%
Native Hawaiian And Pacific Islander Alone	672	0.18%

Population By Ethnicity in Mercer , NJ in 2011

Ethnicity	Population	Percentage
White Alone - Non Hispanic	197,863	53.85%
Black or African American Alone - Non Hispanic	72,090	19.62%
White Alone - Hispanic	47,064	12.81%
Asian Alone - Non Hispanic	34,121	9.29%
Black or African American Alone - Hispanic	5,643	1.54%
Two Or More Races - Non Hispanic	5,641	1.54%
American Indian and Alaska Native Alone - Hispanic	1,623	0.44%
Two Or More Races - Hispanic	1,579	0.43%
American Indian and Alaska Native Alone - Non Hispanic	561	0.15%
Asian Alone - Hispanic	550	0.15%
Native Hawaiian And Pacific Islander Alone - Hispanic	505	0.14%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	167	0.05%