Suburb of Chicago; close to Aurora, Naperville, West Chicago, Batavia and Wheaton, but not important enough to be on any maps. Well known for having no public middle or high schools and shipping their kids to Wheaton's schools, thus causing the sub-standard test scores in CUSD 200 Wheaton-Warrenville School District. Basically, Wheaton's ghetto.
(also called "The Ville" by residents, who are called "Warrenvillains.")
Person A: Hey, I'm from Wheaton, where're you from?
Person B: I'm from Warrenville, which is why my median household income is like a third of yours.