623
- 62301 Quincy
- 62305 Quincy
- 62311 Augusta
- 62312 Barry
- 62313 Basco
- 62314 Baylis
- 62316 Bowen
- 62319 Camden
- 62320 Camp Point
- 62321 Carthage
- 62323 Chambersburg
- 62324 Clayton
- 62325 Coatsburg
- 62326 Colchester
- 62330 Dallas City
- 62334 Elvaston
- 62336 Ferris
- 62338 Fowler
- 62339 Golden
- 62340 Griggsville
- 62341 Hamilton
- 62343 Hull
- 62344 Huntsville
- 62345 Kinderhook
- 62346 La Prairie
- 62347 Liberty
- 62348 Lima
- 62349 Loraine
- 62351 Mendon
- 62352 Milton
- 62353 Mount Sterling
- 62354 Nauvoo
- 62355 Nebo
- 62356 New Canton
- 62357 New Salem
- 62358 Niota
- 62359 Paloma
- 62360 Payson
- 62361 Pearl
- 62362 Perry
- 62363 Pittsfield
- 62365 Plainville
- 62366 Pleasant Hill
- 62367 Plymouth
- 62370 Rockport
- 62373 Sutter
- 62374 Tennessee
- 62375 Timewell
- 62376 Ursa
- 62378 Versailles
- 62379 Warsaw
- 62380 West Point