Dubuque, Iowa ZIP Codes
- ZIP records
3 - Sum of listed ZIP population estimates
73,902 - Counties represented
1 - Population range
13,796–43,101 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 52001 | Dubuque | Dubuque | 43,101 |
| 2 | 52002 | Dubuque | Dubuque | 17,005 |
| 3 | 52003 | Dubuque | Dubuque | 13,796 |
Counties represented
All ZIP Codes in Dubuque
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.