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 2026 population of 718. It is also the county seat of Prince George's County. Upper Marlboro is currently growing at a rate of 0.98% annually and its population has increased by 0.28% since the most recent census, which recorded a population of 716 in 2020.

718
Total Population
504
Density (mi²)
7 0.98%
Growth

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)