Below is a list of Muddy IL zip codes. For your research we have also included Muddy Area Code, Time Zone, UTC and the local Saline County FIPS Code. Each Muddy Illinois zip code has a center Longitude / Latitude point (the Muddy center is -88.512603759766 / 37.765098571777). For your convenience we have also indicated if that zip code in Muddy observes Daylight Savings time.