Below is a list of Savanna IL zip codes. For your research we have also included Savanna Area Code, Time Zone, UTC and the local Carroll County FIPS Code. Each Savanna Illinois zip code has a center Longitude / Latitude point (the Savanna center is -90.140800476074 / 42.090000152588). For your convenience we have also indicated if that zip code in Savanna observes Daylight Savings time.