Below is a list of Calcasieu County LA zip codes. For your research we have also included Calcasieu County Area Code, Time Zone, UTC and the local County FIPS Code. Each Calcasieu County Louisiana zip code has a center Longitude / Latitude point (the Calcasieu County center is -93.24690246582 / 30.22319984436). For your convenience we have also indicated if that zip code in Calcasieu County observes Daylight Savings time.