Below is a list of Gilliam LA zip codes. For your research we have also included Gilliam Area Code, Time Zone, UTC and the local Caddo County FIPS Code. Each Gilliam Louisiana zip code has a center Longitude / Latitude point (the Gilliam center is -93.850402832031 / 32.828601837158). For your convenience we have also indicated if that zip code in Gilliam observes Daylight Savings time.