City
- Atlantic
- Carson
- Carter Lake
- Correctionville
- Council Bluffs
- Essex
- Harlan
- Honey Creek
- Lewis
- Logan
- Malvern
- Missouri Valley
- Modale
- Mondamin
- Pacific Junction
- Persia
- Randolph
- Red Oak
- Sidney
- Silver City
- Treynor
- Walnut
- Woodbine
County
Zip Code
- 50022
- 51056
- 51501
- 51503
- 51503-0000
- 51503-6439
- 51510
- 51525
- 51537
- 51542-0000
- 51544
- 51546
- 51551
- 51555
- 51556
- 51557
- 51561
- 51563
- 51566
- 51571
- 51575
- 51577
- 51579
- 51638
- 51649
- 51652