Mount Arlington

County:: Morris County
County Seat:: No
Area (mi²):: 2.142
State:: New Jersey

Mount Arlington is a borough located in Morris County, New Jersey. Mount Arlington has a 2025 population of 5,951. Mount Arlington is currently growing at a rate of 0.17% annually and its population has increased by 0.86% since the most recent census, which recorded a population of 5,900 in 2020.

The average household income in Mount Arlington is $112,363 with a poverty rate of 6.29%. The median age in Mount Arlington is 45.7 years: 43.9 years for males, and 48.5 years for females.

Demographics

The racial composition of Mount Arlington includes 81.71% White, 3.02% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,822	81.71%
Two or more races	523	8.86%
Black or African American	178	3.02%
Other race	152	2.58%
Asian	123	2.08%
Native American	103	1.75%
Native Hawaiian or Pacific Islander	0	0%

Mount Arlington Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mount Arlington's average per capita income is $67,073. Household income levels show a median of $99,511. The poverty rate stands at 6.29%.

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	$124,453	-
Families	$108,558	$118,997
Households	$99,511	$112,363
Non Families	$78,750	$103,709

$67,073

Average Income

$99,511

Median Household Income

6.29%

Poverty Rate