There are 6 zip codes in Howard County, Iowa. The most populated is 52136, located in Cresco. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
521365,917Cresco
504662,042Riceville
521551,309Lime Springs
506281,183Elma
52163342Protivin
52134305Chester

Zip Codes in Howard County, Iowa by Population (2024)