Below is a list of Milledgeville IL zip codes. For your research we have also included Milledgeville Area Code, Time Zone, UTC and the local Carroll County FIPS Code. Each Milledgeville Illinois zip code has a center Longitude / Latitude point (the Milledgeville center is -89.77320098877 / 41.966598510742). For your convenience we have also indicated if that zip code in Milledgeville observes Daylight Savings time.