There are 12 zip codes in LaPorte County, Indiana. The most populated is 46350, located in La Porte. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4635044,923La Porte
4636043,891Michigan City
463919,369Westville
465747,542Walkerton
463713,525Rolling Prairie
463903,172Wanatah
463821,932Union Mills
463461,391Kingsford Heights
463401,330Hanna
463481,066La Crosse
46365838Mill Creek
4634577Kingsbury

Zip Codes in LaPorte County, Indiana by Population (2024)