South Sioux City zipcode
| City | South Sioux City |
| ZIP Code | 68776 |
| Type | Standard |
| State Code | NE |
| State | Nebraska |
ZIP code of South Sioux City is 68776. This place is located in Nebraska state in US. To send any postal service to South Sioux City, you must use 68776 zipcode.
The ZIP code 68776 is also used with 1 more city name of Nebraska.
- S Sioux City, NE