Mount Vernon is a very small city located in the state of Missouri. With a population of 4,550 people and two associated neighborhoods, Mount Vernon is the 152nd largest community in Missouri.

A relatively large number of people in Mount Vernon telecommute to their jobs. Overall, about 9.80% 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.

Mount Vernon is a small city, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

In terms of college education, the citizens of Mount Vernon rank slightly lower than the national average. 16.17% of adults 25 and older in Mount Vernon have a bachelor's degree or advanced degree, while 21.84% of adults have a 4-year degree or higher in the average American community.

The per capita income in Mount Vernon in 2022 was $24,853, which is middle income relative to Missouri, and lower middle income relative to the rest of the US. This equates to an annual income of $99,412 for a family of four. However, Mount Vernon contains both very wealthy and poor people as well.

The people who call Mount Vernon home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Mount Vernon residents report their race to be White, followed by Black or African-American. Important ancestries of people in Mount Vernon include German, Irish, English, French, and Polish.

The most common language spoken in Mount Vernon is English. Other important languages spoken here include Italian and Polish.