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Nicollet County, Minnesota Zip Codes
Zip Code
City
Population
56003
Mankato
15,360
56082
Saint Peter
14,544
56074
Nicollet
1,716
56021
Courtland
1,091
56054
Lafayette
1,005
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.