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Population Review

Mercer County, NJ — Population & Demographics

Mercer County, NJ has a population of 383,286. The median household income is $96,333 and the median age is 39.2.

383,286

Population

$96,333

Median Income

$351,000

Median Home Value

39.2

Median Age

Race & Ethnicity

White49.8%
Black or African American19.2%
Asian0.0%
Hispanic or Latino (any race)1.4%
Two or More Races0.0%

Economy & Income

$96,333

Median Household Income

$52,101

Per Capita Income

7.5%

Poverty Rate

3.9%

Unemployment

Housing

$351,000

Median Home Value

$1,515

Median Rent

61.9%

Homeownership

Education

89.9%

High School+

44.9%

Bachelor's+

Frequently Asked Questions

Mercer County, NJ has a population of 383,286 according to Census ACS 2023 data.

The median household income in Mercer County, NJ is $96,333.

Data from the American Community Survey (ACS) 5-Year estimates.