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U.S. ZIP Code 68028
5-digit United States postal code #68028, Gretna, NE
ZIP code 68028 is located in the city (place name) Gretna, сounty Sarpy in the state of Nebraska. The population in ZIP code 68028 is 10839 and the population density is 65.1. ZIP code 68028 refers to сounty Sarpy having сounty FIPS 31153, the ratio of people from different counties in this ZIP code is as follows: all county weights - 31153: 100%. In the area of the ZIP code 68028 valid time zone America/Chicago.