There are 9 zip codes in Delaware County, Iowa. The most populated is 52057, located in Manchester. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
520578,082Manchester
520405,644Dyersville
520411,901Earlville
522371,623Hopkinton
522231,162Delhi
52330943Ryan
52038529Dundee
52050433Greeley
52036139Delaware

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