Below is a list of Stonington IL zip codes. For your research we have also included Stonington Area Code, Time Zone, UTC and the local Christian County FIPS Code. Each Stonington Illinois zip code has a center Longitude / Latitude point (the Stonington center is -89.189300537109 / 39.640598297119). For your convenience we have also indicated if that zip code in Stonington observes Daylight Savings time.