Below is a list of Mokena IL zip codes. For your research we have also included Mokena Area Code, Time Zone, UTC and the local Will County FIPS Code. Each Mokena Illinois zip code has a center Longitude / Latitude point (the Mokena center is -87.877601623535 / 41.52619934082). For your convenience we have also indicated if that zip code in Mokena observes Daylight Savings time.