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Polk County, Nebraska Zip Codes
Zip Code
City
Population
68666
Stromsburg
1,608
68651
Osceola
1,224
68662
Shelby
1,192
68654
Polk
563
68367
Gresham
379
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.