| Locality | Post Code |
|---|---|
| Anthon, Woodbury | 51004 |
| Blvd Station, Woodbury | 51109 |
| Bronson, Woodbury | 51007 |
| Climbing Hill, Woodbury | 51015 |
| Correctionville, Woodbury | 51016 |
| Cushing, Woodbury | 51018 |
| Danbury, Woodbury | 51019 |
| Hornick, Woodbury | 51026 |
| James, Woodbury | 51108 |
| Kingsley, Woodbury | 51028 |
| Lawton, Woodbury | 51030 |
| Luton, Woodbury | 51052 |
| Moville, Woodbury | 51039 |
| Oto, Woodbury | 51044 |
| Owego, Woodbury | 51052 |
| Pierson, Woodbury | 51048 |
| Salix, Woodbury | 51052 |
| Sergeant Bluff, Woodbury | 51054 |
| Sioux City, Woodbury | 51101, 51103, 51104, 51105, 51106, … |
| Sloan, Woodbury | 51055 |
| Smithland, Woodbury | 51056 |
| Wickham Spur, Woodbury | 51101 |