Below is a list of Festus MO zip codes. For your research we have also included Festus Area Code, Time Zone, UTC and the local Jefferson County FIPS Code. Each Festus Missouri zip code has a center Longitude / Latitude point (the Festus center is -90.406600952148 / 38.219501495361). For your convenience we have also indicated if that zip code in Festus observes Daylight Savings time.