Mount Rainier Flag

Mount Rainier

County Seat:
No
Area (mi²):
0.637
State:
Maryland

Mount Rainier is a city located in Prince George's County, Maryland. Mount Rainier has a 2025 population of 7,988. Mount Rainier is currently declining at a rate of -0.81% annually and its population has decreased by -3.93% since the most recent census, which recorded a population of 8,315 in 2020.

The average household income in Mount Rainier is $83,842 with a poverty rate of 6.65%.The median age in Mount Rainier is 40 years: 40.7 years for males, and 36.7 years for females.

8K
Total Population
12,539
Density (mi²)
-65 -0.81%
Growth

Mount Rainier Population

Demographics

Economics and Income Statistics

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)