Below is a list of Fieldon IL zip codes. For your research we have also included Fieldon Area Code, Time Zone, UTC and the local Jersey County FIPS Code. Each Fieldon Illinois zip code has a center Longitude / Latitude point (the Fieldon center is -90.499397277832 / 39.108699798584). For your convenience we have also indicated if that zip code in Fieldon observes Daylight Savings time.