Below is a list of Plaquemines County LA zip codes. For your research we have also included Plaquemines County Area Code, Time Zone, UTC and the local County FIPS Code. Each Plaquemines County Louisiana zip code has a center Longitude / Latitude point (the Plaquemines County center is -89.630401611328 / 29.469100952148). For your convenience we have also indicated if that zip code in Plaquemines County observes Daylight Savings time.