Lake St. Louis is a medium-sized city located in the state of Missouri. With a population of 18,337 people and four associated neighborhoods, Lake St. Louis is the 45th largest community in Missouri.

Lake St. Louis real estate is some of the most expensive in Missouri, although Lake St. Louis house values don't compare to the most expensive real estate in the U.S.

Also of interest is that Lake St. Louis 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 Lake St. Louis telecommute to their jobs. Overall, about 16.09% 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.

Because of many things, Lake St. Louis is a very good place for families to consider. With an enviable combination of good schools, low crime, college-educated neighbors who tend to support education because of their own experiences, and a high rate of home ownership in predominantly single-family properties, Lake St. Louis really has some of the features that families look for when choosing a good community to raise children. Is Lake St. Louis perfect? Of course not, and if you like frenetic nightlife, it will be far from your cup of tea. But overall this is a solid community, with many things to recommend it as a family-friendly place to live.

Lake St. Louis 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.

Lake St. Louis is one of the most well-educated cities in the nation. 49.71% of adults in Lake St. Louis have at least a bachelor's degree. Compare that to the average community in America, which has just 21.84% with a bachelor's degree or higher.

The per capita income in Lake St. Louis in 2022 was $57,945, which is wealthy relative to Missouri and the nation. This equates to an annual income of $231,780 for a family of four.

Lake St. Louis is a somewhat ethnically-diverse city. The people who call Lake St. Louis home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Lake St. Louis residents report their race to be White, followed by Black or African-American. Important ancestries of people in Lake St. Louis include German, Irish, English, Italian, and French.

The most common language spoken in Lake St. Louis is English. Other important languages spoken here include Spanish and Other Asian languages.