Osterdock ZIP codes, Iowa
No ZIP code is named for Osterdock, IA; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 52052 and 52035. Its area code is 563.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 2 more
- Population
- 136
- Area code
- 563
- County
- Clayton County
- State
- Iowa
NANPA lists no telephone rate centre for Osterdock itself, so these are the area codes of the nearest one, Guttenberg (0.0 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes covering Osterdock
These ZIP codes cover part of Osterdock but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
52035 | Colesburg , IA | Standard | 1,331 | $62,109 | $138,500 |
52052 | Guttenberg , IA | Standard | 2,999 | $61,528 | $197,400 |
Map of Osterdock ZIP codes
The ZIP codes of Osterdock, IA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Osterdock
The nearest larger towns are Guttenberg (1,782 people, 4.7 mi), Colesburg (545 people, 6.7 mi) and Cassville, WI (634 people, 8.7 mi).
| Town | Population | Distance |
|---|---|---|
| Dyersville | 4,423 | 17.4 mi |
| Prairie du Chien, WI | 5,491 | 21.5 mi |
| Manchester | 5,191 | 22.7 mi |
| Lancaster, WI | 3,976 | 24.3 mi |
| Asbury | 5,989 | 24.5 mi |
| Dubuque | 59,174 | 28.0 mi |
More nearby: every ZIP code in Clayton County · Iowa ZIP codes
Cite this page
zipcodes.pro. “Osterdock, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/osterdock
Underlying data is public domain or openly licensed — sources, vintages and licences.