Below is a list of Mundelein IL zip codes. For your research we have also included Mundelein Area Code, Time Zone, UTC and the local Lake County FIPS Code. Each Mundelein Illinois zip code has a center Longitude / Latitude point (the Mundelein center is -88.003997802734 / 42.268299102783). For your convenience we have also indicated if that zip code in Mundelein observes Daylight Savings time.