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 and multiracial populations.

Population by Race

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%

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