Colonia

County:: Middlesex County
County Seat:: No
Area (mi²):: 4.03
State:: New Jersey

Colonia is a CDP located in Middlesex County, New Jersey. Colonia has a 2025 population of 18,778. Colonia is currently growing at a rate of 0.35% annually and its population has increased by 5.6% since the most recent census, which recorded a population of 17,782 in 2020.

The average household income in Colonia is $151,367 with a poverty rate of 5.86%. The median age in Colonia is 43.3 years: 41.4 years for males, and 45.3 years for females.

Demographics

The racial composition of Colonia includes 65.54% White, 14.16% Asian, 7.48% other race, 4.38% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	11,989	65.54%
Asian	2,590	14.16%
Two or more races	1,534	8.39%
Other race	1,368	7.48%
Black or African American	802	4.38%
Native American	11	0.06%
Native Hawaiian or Pacific Islander	0	0%

Colonia Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Colonia's average per capita income is $72,963. Household income levels show a median of $134,301. The poverty rate stands at 5.86%.

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	$156,630	-
Families	$145,646	$167,323
Households	$134,301	$151,367
Non Families	$49,578	$79,074

$72,963

Average Income

$134,301

Median Household Income

5.86%

Poverty Rate