Where is Zip Code 56003 map for 2020, 2019Primary Zip Codes for 56003Zip CodePrimary CitySecondary City56003MankatoMankato, N No NorthCities sharing Zip Codes with 56003Zip CodePrimary CitySecondary CityMore Information56003MankatoNorth Mankato North Mankato population stats 56002MankatoN Mankato56002MankatoNo Mankato56002MankatoNorth Mankato North Mankato population stats 56003MankatoN Mankato56003MankatoNo Mankato56055Lake CrystalNorth Mankato North Mankato population stats 56001MankatoMankato Mankato population stats 56002MankatoMankato Mankato population stats 56006MankatoMankato Mankato population stats Advertisements