Below is a list of Flanagan IL zip codes. For your research we have also included Flanagan Area Code, Time Zone, UTC and the local Livingston County FIPS Code. Each Flanagan Illinois zip code has a center Longitude / Latitude point (the Flanagan center is -88.860397338867 / 40.870998382568). For your convenience we have also indicated if that zip code in Flanagan observes Daylight Savings time.