686
- 68601 Columbus
- 68620 Albion
- 68621 Ames
- 68622 Bartlett
- 68623 Belgrade
- 68624 Bellwood
- 68626 Brainard
- 68627 Cedar Rapids
- 68628 Clarks
- 68629 Clarkson
- 68631 Creston
- 68632 David City
- 68633 Dodge
- 68634 Duncan
- 68635 Dwight
- 68636 Elgin
- 68637 Ericson
- 68638 Fullerton
- 68640 Genoa
- 68641 Howells
- 68642 Humphrey
- 68643 Leigh
- 68644 Lindsay
- 68647 Monroe
- 68648 Morse Bluff
- 68649 North Bend
- 68651 Osceola
- 68652 Petersburg
- 68653 Platte Center
- 68654 Polk
- 68655 Primrose
- 68658 Rising City
- 68659 Rogers
- 68660 Saint Edward
- 68661 Schuyler
- 68662 Shelby
- 68663 Silver Creek
- 68664 Snyder
- 68665 Spalding
- 68666 Stromsburg
- 68667 Surprise
- 68669 Ulysses