There are 8 zip codes in DeKalb County, Indiana. The most populated is 46706, located in Auburn. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4670620,000Auburn
467388,339Garrett
467214,856Butler
467934,281Waterloo
467884,099Spencerville
467051,936Ashley
467851,732Saint Joe
467301,007Corunna

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