Warrenton is a somewhat small city located in the state of Missouri. With a population of 9,176 people and five associated neighborhoods, Warrenton is the 95th largest community in Missouri. Warrenton has seen a significant amount of newer housing growth in recent years. Quite often, new home construction is the result of new residents moving in who are middle class or wealthier, attracted by jobs, a healthy local economy, or other amenities as they leave nearby or far away areas for greener pastures. This seems to be the case in Warrenton, where the median household income is $62,096.00.

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

Being a small city, Warrenton does not have a public transit system used by locals to get to and from work.

The percentage of adults in Warrenton with college degrees is slightly lower than the national average of 21.84% for all communities. 15.80% of adults in Warrenton have a bachelor's degree or advanced degree.

The per capita income in Warrenton in 2018 was $26,622, 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 $106,488 for a family of four. However, Warrenton contains both very wealthy and poor people as well.

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

The most common language spoken in Warrenton is English. Other important languages spoken here include Italian and Spanish.