Jamesburg

County:: Middlesex County
County Seat:: No
Area (mi²):: 0.882
State:: New Jersey

Jamesburg is a borough located in Middlesex County, New Jersey. Jamesburg has a 2025 population of 5,716. Jamesburg is currently declining at a rate of -0.16% annually and its population has decreased by -0.82% since the most recent census, which recorded a population of 5,763 in 2020.

The average household income in Jamesburg is $123,551 with a poverty rate of 4.23%.The median age in Jamesburg is 36.7 years: 33.3 years for males, and 39.7 years for females.

Demographics

The racial composition of Jamesburg includes 67.27% White, 18.01% other race, 5.31% Asian, and smaller percentages for Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,877	67.27%
Other race	1,038	18.01%
Two or more races	430	7.46%
Asian	306	5.31%
Black or African American	112	1.94%

Jamesburg Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Jamesburg's average per capita income is $59,303. Household income levels show a median of $117,719. The poverty rate stands at 4.23%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$139,911	-
Families	$137,679	$140,673
Households	$117,719	$123,551
Non Families	-	$72,318

$59,303

Average Income

$117,719

Median Household Income

4.23%

Poverty Rate