Below is a list of Gretna NE zip codes. For your research we have also included Gretna Area Code, Time Zone, UTC and the local Sarpy County FIPS Code. Each Gretna Nebraska zip code has a center Longitude / Latitude point (the Gretna center is -96.239700317383 / 41.138900756836). For your convenience we have also indicated if that zip code in Gretna observes Daylight Savings time.