There are 10 zip codes in Shelby County, Iowa. The most populated is 51537, located in Harlan. * 2024 populations estimated based on the latest ACS 5-year data.

Zip Code
Population
City
515376,852Harlan
51570974Shelby
51531784Elk Horn
51530629Earling
51565530Portsmouth
51562486Panama
51446483Irwin
51527395Defiance
51447152Kirkman
51578142Westphalia

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