Smithland ZIP code, Iowa
The ZIP code for Smithland, IA is 51056, and its area code is 712.
- USPS city name
- 1 ZIP code
- Population
- 137
- Area code
- 712
- County
- Woodbury County
- State
- Iowa
ZIP codes addressed as Smithland
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
51056 | Smithland , IA | Standard | 346 | $103,313 | $157,400 |
Map of Smithland ZIP codes
The ZIP codes of Smithland, 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 Smithland
The nearest larger towns are Mapleton (989 people, 8.4 mi), Hornick (340 people, 8.4 mi) and Danbury (283 people, 11 mi).
| Town | Population | Distance |
|---|---|---|
| Onawa | 2,839 | 16.2 mi |
| Sergeant Bluff | 5,171 | 24.4 mi |
| Dakota City, NE | 2,675 | 28.2 mi |
| South Sioux City, NE | 13,907 | 29.4 mi |
| Sioux City | 86,101 | 29.8 mi |
More nearby: every ZIP code in Woodbury County · Iowa ZIP codes
Cite this page
zipcodes.pro. “Smithland, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/smithland
Underlying data is public domain or openly licensed — sources, vintages and licences.