There are 13 zip codes in Dubuque County, Iowa. The most populated is 52001, located in Dubuque. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
5200142,895Dubuque
5200217,871Dubuque
5200313,820Dubuque
520684,483Peosta
520452,950Epworth
520462,663Farley
520731,496Sherrill
520321,407Bernard
520531,317Holy Cross
52039908Durango
52065824New Vienna
52078801Worthington
52056222Luxemburg

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