Dubuque, IA zip codes
Dubuque, Iowa has 5 zip codes (3 residential, 2 PO box or single-organization). Most of it is in Dubuque County. Together these zip codes are home to about 74K people.
Zip codes
5
Population
74K
All zips combined
Largest zip
52001
43,101 residents
Income range
$62K–$99K
Median by zip