Below is a list of Itasca IL zip codes. For your research we have also included Itasca Area Code, Time Zone, UTC and the local Dupage County FIPS Code. Each Itasca Illinois zip code has a center Longitude / Latitude point (the Itasca center is -88.023803710938 / 41.976001739502). For your convenience we have also indicated if that zip code in Itasca observes Daylight Savings time.