Below is a list of Saint Onge SD zip codes. For your research we have also included Saint Onge Area Code, Time Zone, UTC and the local Lawrence County FIPS Code. Each Saint Onge South Dakota zip code has a center Longitude / Latitude point (the Saint Onge center is -103.72100067139 / 44.546199798584). For your convenience we have also indicated if that zip code in Saint Onge observes Daylight Savings time.