Below is a list of Pomona IL zip codes. For your research we have also included Pomona Area Code, Time Zone, UTC and the local Jackson County FIPS Code. Each Pomona Illinois zip code has a center Longitude / Latitude point (the Pomona center is -89.325103759766 / 37.626899719238). For your convenience we have also indicated if that zip code in Pomona observes Daylight Savings time.