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Nemaha County, Nebraska Zip Codes
Zip Code
City
Population
68305
Auburn
4,329
68421
Peru
1,046
68378
Johnson
617
68321
Brownville
376
68320
Brock
345
68414
Nemaha
173
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.