what is the zip code for gretna ne
Zip Code 68028 Description. Zip Code 68028 is located in the state of Nebraska in the Omaha metro area. Zip code 68028 is primarily located in Sarpy County. The official US Postal Service name for 68028 is GRETNA, Nebraska. Portions of zip code 68028 are contained within or border the city limits of Gretna, NE, . The area code for zip code 68028 is 402. 68028 can be classified socioeconically as a Middle Class class zipcode in comparison to other zipcodes in Nebraska.