Mount Rainier is a somewhat small city located in the state of Maryland. With a population of 8,126 people and three associated neighborhoods, Mount Rainier is the 91st largest community in Maryland. Mount Rainier has an unusually large stock of pre-World War II architecture, making it one of the older and more historic cities.

Housing costs in Mount Rainier are among some of the highest in the nation, although real estate prices here don't compare to real estate prices in the most expensive communities in Maryland.

Of important note, Mount Rainier is also a city of artists. Mount Rainier has more artists, designers and people working in media than 90% of the communities in America. This concentration of artists helps shape Mount Rainier’s character.

Also of interest is that Mount Rainier has more people living here who work in computers and math than 95% of the places in the US.

A relatively large number of people in Mount Rainier telecommute to their jobs. Overall, about 13.54% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

In Mount Rainier, however, the average commute to work is quite long. On average, people spend 32.29 minutes each day getting to work, which is significantly higher than the national average. One bright side is that local public transit is widely used, so it may be an option to avoid the headache of driving in the heavy traffic by leaving the car at home and taking transit. In addition, the city is also quite pedestrian-friendly, because many neighborhoods are very dense and have amenities close enough together that people find it feasible to get around on foot.

In Mount Rainier, a lot of people use the subway to get to work every day though Mount Rainier is a relatively small city. Those that ride the subway are primarily traveling out of town to good jobs in other cities.

The population of Mount Rainier is very well educated relative to most cities and towns in the nation, where the average community has 21.84% of its adult population holding a 4-year degree or higher: 36.66% of adults in Mount Rainier have a bachelor's degree or even advanced degree.

The per capita income in Mount Rainier in 2018 was $39,471, which is lower middle income relative to Maryland, and upper middle income relative to the rest of the US. This equates to an annual income of $157,884 for a family of four. However, Mount Rainier contains both very wealthy and poor people as well.

Mount Rainier is an extremely ethnically-diverse city. The people who call Mount Rainier home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Mount Rainier residents report their race to be Black or African-American, followed by White. Mount Rainier also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 33.30% of the city’s residents. Important ancestries of people in Mount Rainier include English, African, Irish, German, and Swedish.

Foreign born people are also an important part of Mount Rainier's cultural character, accounting for 33.84% of the city’s population.

The most common language spoken in Mount Rainier is English. Other important languages spoken here include Spanish and African languages.