Below is a list of Kilbourne IL zip codes. For your research we have also included Kilbourne Area Code, Time Zone, UTC and the local Mason County FIPS Code. Each Kilbourne Illinois zip code has a center Longitude / Latitude point (the Kilbourne center is -90.004898071289 / 40.152198791504). For your convenience we have also indicated if that zip code in Kilbourne observes Daylight Savings time.