Mount Rainier

County:: Prince George's County
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.

Demographics

The racial composition of Mount Rainier includes 45.4% Black or African American, 26.33% other race, 19.23% White, and smaller percentages for Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
Black or African American	3,739	45.4%
Other race	2,168	26.33%
White	1,584	19.23%
Two or more races	652	7.92%
Asian	92	1.12%

Mount Rainier Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mount Rainier's average per capita income is $44,624. Household income levels show a median of $68,281. The poverty rate stands at 6.65%.

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	$89,304	-
Families	$77,437	$104,919
Households	$68,281	$83,842
Non Families	$53,850	$58,357

$44,624

Average Income

$68,281

Median Household Income

6.65%

Poverty Rate