Dubuque Iowa ZIP Codes
Dubuque holds 5 ZIP codes, all inside one county and one postal prefix.
Every ZIP code in Dubuque
| ZIP code | County |
|---|---|
| 52001 | Dubuque County |
| 52002 | Dubuque County |
| 52003 | Dubuque County |
| 52004 | Dubuque County |
| 52099 | Dubuque County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Dubuque codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Dubuque. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Dubuque ZIP code begins 520. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 46 ZIP codes, so Dubuque accounts for 11% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Dubuque
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Dubuque occupies.
Dubuque Iowa area codes in full →
Where Dubuque's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Dubuque
| City | Distance | ZIP codes |
|---|---|---|
| Durango Iowa ZIP codes | 5.6 mi | 1 ZIP code |
| Peosta Iowa ZIP codes | 7.7 mi | 1 ZIP code |
| Sherrill Iowa ZIP codes | 8.3 mi | 1 ZIP code |
| Epworth Iowa ZIP codes | 12 mi | 1 ZIP code |
| Zwingle Iowa ZIP codes | 14 mi | 1 ZIP code |
| Bernard Iowa ZIP codes | 14 mi | 1 ZIP code |
| La Motte Iowa ZIP codes | 15 mi | 1 ZIP code |
| Farley Iowa ZIP codes | 16 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.