Postal Codes for Sioux City, Iowa
The postal codes for Sioux City, Iowa, United States (9 codes, e.g. 51101). With map location and coordinates.
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The postal codes for Sioux City, Iowa, United States (9 codes):
| Postal code | Place | County / area | Coordinates |
|---|---|---|---|
| 51101 | Sioux City | Woodbury | 42.497, -96.403 |
| 51102 | Sioux City | Woodbury | 42.368, -96.318 |
| 51103 | Sioux City | Woodbury | 42.507, -96.43 |
| 51104 | Sioux City | Woodbury | 42.525, -96.401 |
| 51105 | Sioux City | Woodbury | 42.503, -96.383 |
| 51106 | Sioux City | Woodbury | 42.467, -96.353 |
| 51108 | Sioux City | Woodbury | 42.547, -96.362 |
| 51109 | Sioux City | Woodbury | 42.517, -96.48 |
| 51111 | Sioux City | Woodbury | 42.409, -96.371 |
Frequently asked questions
What is the postal code of Sioux City?
Sioux City has 9 postal codes; the first is 51101. They are all listed above with their areas.
Why does Sioux City have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.