Castalia ZIP code, Iowa
The ZIP code for Castalia, IA is 52133, and its area code is 563.
- USPS city name
- 1 ZIP code
- Population
- 142
- Area code
- 563
- County
- Winneshiek County
- State
- Iowa
ZIP codes addressed as Castalia
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
52133 | Castalia , IA | Standard | 673 | $76,250 | $246,100 |
Map of Castalia ZIP codes
The ZIP codes of Castalia, 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 Castalia
The nearest larger towns are Ossian (806 people, 5.0 mi), Postville (2,979 people, 5.8 mi) and Clermont (627 people, 7.9 mi).
| Town | Population | Distance |
|---|---|---|
| Postville | 2,979 | 5.8 mi |
| Decorah | 7,535 | 14.1 mi |
| Waukon | 3,792 | 14.7 mi |
| Prairie du Chien, WI | 5,491 | 27.8 mi |
| Cresco | 3,908 | 28.5 mi |
More nearby: every ZIP code in Winneshiek County · Iowa ZIP codes
Cite this page
zipcodes.pro. “Castalia, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/castalia
Underlying data is public domain or openly licensed — sources, vintages and licences.