O'Fallon is a medium-sized city located in the state of Illinois. With a population of 29,583 people and seven constituent neighborhoods, O'Fallon is the 73rd largest community in Illinois.
Unlike some cities where white-collar or blue-collar occupations dominate the local economy, O'Fallon is neither predominantly one nor the other. Instead, it has a mixed workforce of both white- and blue-collar jobs. Overall, O'Fallon is a city of professionals, sales and office workers, and managers. There are especially a lot of people living in O'Fallon who work in office and administrative support (12.51%), management occupations (11.60%), and sales jobs (11.35%).
There are many members of the armed forces living in O'Fallon. You will notice when you visit or live here that some of the people you meet or see around town are employed by the armed services - even if they are not always in uniform.
Also of interest is that O'Fallon has more people living here who work in computers and math than 95% of the places in the US.
The citizens of O'Fallon are among the most well-educated in the nation: 47.73% of adults in O'Fallon have a bachelor's degree or even advanced degree, whereas the average US city has 21.84% holding at least a bachelor's degree.
The per capita income in O'Fallon in 2018 was $38,017, which is wealthy relative to Illinois and the nation. This equates to an annual income of $152,068 for a family of four. However, O'Fallon contains both very wealthy and poor people as well.
O'Fallon is a very ethnically-diverse city. The people who call O'Fallon home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of O'Fallon residents report their race to be White, followed by Black or African-American. Important ancestries of people in O'Fallon include German, Irish, English, Polish, and Italian.
The most common language spoken in O'Fallon is English. Other important languages spoken here include Spanish and German/Yiddish.