Below is a list of Warrenville IL zip codes. For your research we have also included Warrenville Area Code, Time Zone, UTC and the local Dupage County FIPS Code. Each Warrenville Illinois zip code has a center Longitude / Latitude point (the Warrenville center is -88.165649414062 / 41.792575836182). For your convenience we have also indicated if that zip code in Warrenville observes Daylight Savings time.