Below is a list of Assumption County LA zip codes. For your research we have also included Assumption County Area Code, Time Zone, UTC and the local County FIPS Code. Each Assumption County Louisiana zip code has a center Longitude / Latitude point (the Assumption County center is -91.056396484375 / 29.953800201416). For your convenience we have also indicated if that zip code in Assumption County observes Daylight Savings time.