Mount Rainier is a city located in Maryland. With a 2020 population of 8,100, it is the 27th largest city in Maryland and the 3595th largest city in the United States. Mount Rainier is currently declining at a rate of -0.02% annually but its population has increased by 0.25% since the most recent census, which recorded a population of 8,080 in 2010. Mount Rainier reached it's highest population of 10,989 in 1950. Spanning over 1 miles, Mount Rainier has a population density of 12,730 people per square mile.
The average household income in Mount Rainier is $68,758 with a poverty rate of 8.33%. The median rental costs in recent years comes to $1,201 per month, and the median house value is $336,200. The median age in Mount Rainier is 36 years, 36.1 years for males, and 35.8 years for females. For every 100 females there are 92.2 males.