Dubuque County, Iowa ZIP codes
15 ZIP codes are in Dubuque County, plus 7 that cross in from neighboring counties. It's part of the Dubuque, IA metro area.
- ZIP codes
- 15
- Population in these ZIPs
- 91,771
- Avg. median income
- $80,500population-weighted
- Cities & towns
- 11
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Dubuque County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 52001 | Dubuque | 43,101 | $61,643 | $207,100 |
| 52002 | Dubuque | 17,005 | $91,036 | $348,300 |
| 52003 | Dubuque | 13,796 | $98,908 | $337,900 |
| 52004 PO Box | Dubuque | — | — | — |
| 52032 | Bernard | 1,305 | $88,500 | $293,700 |
| 52039 | Durango | 1,079 | $79,345 | $400,500 |
| 52045 | Epworth | 2,777 | $91,667 | $326,500 |
| 52046 | Farley | 3,129 | $96,151 | $312,700 |
| 52053 | Holy Cross | 1,148 | $83,000 | $341,900 |
| 52056 | Luxemburg | 229 | $83,750 | $236,300 |
| 52065 | New Vienna | 671 | $99,250 | $326,600 |
| 52068 | Peosta | 5,280 | $125,901 | $441,800 |
| 52073 | Sherrill | 1,381 | $95,526 | $381,500 |
| 52078 | Worthington | 870 | $97,778 | $319,600 |
| 52099 PO Box | Dubuque | — | — | — |
ZIP codes partly in Dubuque County
These ZIP codes are mostly in a neighboring county but cover part of Dubuque County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 52031 | Bellevue | Jackson County | 5,403 | $86,674 | $317,300 |
| 52033 | Cascade | Jones County | 3,292 | $69,023 | $294,600 |
| 52040 | Dyersville | Delaware County | 5,584 | $84,761 | $290,400 |
| 52052 | Guttenberg | Clayton County | 2,999 | $61,528 | $278,300 |
| 52054 | La Motte | Jackson County | 794 | $103,819 | $365,200 |
| 52079 | Zwingle | Jackson County | 995 | $101,120 | $386,800 |
| 52237 | Hopkinton | Delaware County | 1,830 | $84,063 | $253,600 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Dubuque County
Nearby counties
Frequently asked questions
How many ZIP codes are in Dubuque County, Iowa?
15 ZIP codes are mainly in Dubuque County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Dubuque County?
ZIP codes in Dubuque County use the city names Bernard, Dubuque, Durango, Epworth, Farley, Holy Cross, Luxemburg, New Vienna, Peosta, Sherrill and Worthington.
What metro area is Dubuque County in?
Dubuque County is part of the Dubuque, IA metropolitan statistical area.