ZIP Code 51111
Sioux City · Woodbury, Iowa
51111 is the ZIP code of Sioux City in Woodbury, Iowa, United States.
- ZIP Code
- 51111
- County
- Woodbury
- State
- Iowa
- Country
- United States
Place with ZIP code 51111
| Place | County | Location |
|---|---|---|
| Sioux City | Woodbury | 42.409, -96.371 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 51111?
Sioux City.
Which county and state is 51111 in?
Woodbury, Iowa, United States.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.