Upper Marlboro

County:: Prince George's County
County Seat:: Yes
Area (mi²):: 1.424
State:: Maryland

Upper Marlboro is a town located in Prince George's County, Maryland. Upper Marlboro has a 2025 population of 695. It is also the county seat of .Upper Marlboro is currently declining at a rate of -0.57% annually and its population has decreased by -2.8% since the most recent census, which recorded a population of 715 in 2020.

The average household income in Upper Marlboro is $124,561 with a poverty rate of 1.48%. The median age in Upper Marlboro is 34.9 years: 33.5 years for males, and 38 years for females.

Demographics

The racial composition of Upper Marlboro includes 73.94% Black or African American, 20.61% White, and smaller percentages for Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

Black or African American

White

Two or more races

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
Black or African American	556	73.94%
White	155	20.61%
Two or more races	41	5.45%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Upper Marlboro Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Upper Marlboro's average per capita income is $73,936. Household income levels show a median of $115,568. The poverty rate stands at 1.48%.

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	$145,511	-
Families	$119,583	$138,302
Households	$115,568	$124,561
Non Families	$105,833	$106,763

$73,936

Average Income

$115,568

Median Household Income

1.48%

Poverty Rate