Mendham

County:: Morris County
County Seat:: No
Area (mi²):: 5.93
State:: New Jersey

Mendham is a borough located in Morris County, New Jersey. Mendham has a 2025 population of 4,970. Mendham is currently declining at a rate of 0% annually and its population has increased by 0.02% since the most recent census, which recorded a population of 4,969 in 2020.

The average household income in Mendham is $312,713 with a poverty rate of 2.18%.The median age in Mendham is 46.6 years: 47.3 years for males, and 46.1 years for females.

Demographics

The racial composition of Mendham includes 82.94% White, 6.57% Asian, and smaller percentages for Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	4,128	82.94%
Two or more races	520	10.45%
Asian	327	6.57%
Black or African American	2	0.04%

Mendham Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mendham's average per capita income is $111,138. Household income levels show a median of $223,750. The poverty rate stands at 2.18%.

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
Families	$250,001	$360,557
Married Families	$250,001	-
Households	$223,750	$312,713
Non Families	$86,806	$117,710

$111,138

Average Income

$223,750

Median Household Income

2.18%

Poverty Rate