| 51004 Anthon | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51007 Bronson | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51015 Climbing Hill | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51016 Correctionville | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51016 Correctionvle | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51018 Cushing | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51019 Danbury | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51026 Climbing Hill | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51026 Hornick | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51030 Lawton | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51039 Moville | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51044 Oto | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51048 Pierson | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51052 Luton | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51052 Salix | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51052 Owego | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51054 Sergeant Bluff | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51054 Sgt Bluff | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51055 Sloan | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51056 Smithland | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51101 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51101 Wickham Spur | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51102 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51103 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51104 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51105 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51106 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51108 James | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51108 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51109 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51109 Blvd Station | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 51111 Sioux City | 712 | Woodbury County | Iowa - IA | Sioux City, IA-NE (7720) | MSA |
| 68030 Homer | 402 | Dakota County | Nebraska - NE | Sioux City, IA-NE (7720) | MSA |
| 68731 Dakota City | 402 | Dakota County | Nebraska - NE | Sioux City, IA-NE (7720) | MSA |
| 68733 Emerson | 402 | Dakota County | Nebraska - NE | Sioux City, IA-NE (7720) | MSA |
| 68741 Hubbard | 402 | Dakota County | Nebraska - NE | Sioux City, IA-NE (7720) | MSA |
| 68743 Jackson | 402 | Dakota County | Nebraska - NE | Sioux City, IA-NE (7720) | MSA |
| 68776 South Sioux City | 402 | Dakota County | Nebraska - NE | Sioux City, IA-NE (7720) | MSA |