Upper Marlboro Flag

Upper Marlboro

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 718 . It is also the county seat of Prince George's County . Upper Marlboro is currently declining at a rate of 0% annually and its population has increased by 0.28% since the most recent census, which recorded a population of 716 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. For every 100 females there are 97.4 males.

718
Total Population
504
Density (mi²)

Upper Marlboro Population

Upper Marlboro Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Upper Marlboro includes 73.94% Black or African American, 20.61% White, and smaller percentages for and multiracial populations.

Population by Race

Black or African American (73.94%)

White (20.61%)

Two or more races (5.45%)

Race
Population
Percentage (of total)
Black or African American55673.94%
White15520.61%
Two or more races415.45%

Upper Marlboro Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)