Dubuque County, Iowa

13 ZIP codes · 608.3 sq mi of land · FIPS 19061

Population99,030
StateIowa
FIPS code19061
Time zoneCentral
Land area608.3 sq mi
Center (lat, long)42.4635, -90.8788

Area codes in this area

563

These are the area codes that most often serve Dubuque County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Cities and towns (largest first)

Dubuque · 59,174BernardDurangoEpworthFarleyHoly CrossLuxemburgNew ViennaPeostaSherrillWorthington

ZIP codes in Dubuque County

52001 Dubuque52002 Dubuque52003 Dubuque52032 Bernard52039 Durango52045 Epworth52046 Farley52053 Holy Cross52056 Luxemburg52065 New Vienna52068 Peosta52073 Sherrill52078 Worthington

Population: U.S. Census Bureau, ACS 5-year estimates, 2024.