Below is a list of Saint Clair MO zip codes. For your research we have also included Saint Clair Area Code, Time Zone, UTC and the local Franklin County FIPS Code. Each Saint Clair Missouri zip code has a center Longitude / Latitude point (the Saint Clair center is -90.984100341797 / 38.350101470947). For your convenience we have also indicated if that zip code in Saint Clair observes Daylight Savings time.