Below is a list of Fairmount IL zip codes. For your research we have also included Fairmount Area Code, Time Zone, UTC and the local Vermilion County FIPS Code. Each Fairmount Illinois zip code has a center Longitude / Latitude point (the Fairmount center is -87.830497741699 / 40.045501708984). For your convenience we have also indicated if that zip code in Fairmount observes Daylight Savings time.