Below is a list of St John The Baptist County LA zip codes. For your research we have also included St John The Baptist County Area Code, Time Zone, UTC and the local County FIPS Code. Each St John The Baptist County Louisiana zip code has a center Longitude / Latitude point (the St John The Baptist County center is -90.554298400879 / 30.067899703979). For your convenience we have also indicated if that zip code in St John The Baptist County observes Daylight Savings time.