Below is a list of Elmhurst IL zip codes. For your research we have also included Elmhurst Area Code, Time Zone, UTC and the local Dupage County FIPS Code. Each Elmhurst Illinois zip code has a center Longitude / Latitude point (the Elmhurst center is -87.940002441406 / 41.899799346924). For your convenience we have also indicated if that zip code in Elmhurst observes Daylight Savings time.