Zip Code 52003 — Dubuque, IA
52003 is a ZIP Code associated with Dubuque, IA, located within Dubuque. 52003 ranks #3 out of 13 ZIP codes in Dubuque County by population (and #61 out of 970 in IA). The area supports an estimated population of 13,796 residents across Data Pending housing units, with a population density of 94.5 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.434340, -90.675060)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 52003 |
| Primary City | Dubuque |
| State / Province | IA |
| County | Dubuque |
| Total Population | 13,796 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 94.5 people/sq mi |
| Timezone | America/Chicago |
How 52003 Compares
| Metric | ZIP 52003 | Dubuque County | IA State Average |
|---|
| Population | 13,796 | 91,771 (Total) | 3,210,984 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 94.5 /sq mi | -- | -- |
| County Pop Rank | #3 of 13 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →