Below is a list of Flossmoor IL zip codes. For your research we have also included Flossmoor Area Code, Time Zone, UTC and the local Cook County FIPS Code. Each Flossmoor Illinois zip code has a center Longitude / Latitude point (the Flossmoor center is -87.684501647949 / 41.542598724365). For your convenience we have also indicated if that zip code in Flossmoor observes Daylight Savings time.