620
- 62001 Alhambra
- 62002 Alton
- 62006 Batchtown
- 62009 Benld
- 62010 Bethalto
- 62011 Bingham
- 62012 Brighton
- 62013 Brussels
- 62014 Bunker Hill
- 62015 Butler
- 62016 Carrollton
- 62017 Coffeen
- 62018 Cottage Hills
- 62019 Donnellson
- 62021 Dorsey
- 62022 Dow
- 62023 Eagarville
- 62024 East Alton
- 62025 Edwardsville
- 62027 Eldred
- 62028 Elsah
- 62030 Fidelity
- 62031 Fieldon
- 62032 Fillmore
- 62033 Gillespie
- 62034 Glen Carbon
- 62035 Godfrey
- 62036 Golden Eagle
- 62037 Grafton
- 62040 Granite City
- 62044 Greenfield
- 62045 Hamburg
- 62046 Hamel
- 62047 Hardin
- 62048 Hartford
- 62049 Hillsboro
- 62050 Hillview
- 62051 Irving
- 62052 Jerseyville
- 62053 Kampsville
- 62054 Kane
- 62056 Litchfield
- 62058 Livingston
- 62059 Lovejoy
- 62060 Madison
- 62061 Marine
- 62062 Maryville
- 62063 Medora
- 62065 Michael
- 62067 Moro
- 62069 Mount Olive
- 62070 Mozier
- 62074 New Douglas
- 62075 Nokomis
- 62076 Ohlman
- 62077 Panama
- 62078 Patterson
- 62079 Piasa
- 62080 Ramsey
- 62081 Rockbridge
- 62082 Roodhouse
- 62083 Rosamond
- 62084 Roxana
- 62085 Sawyerville
- 62086 Sorento
- 62087 South Roxana
- 62088 Staunton
- 62089 Taylor Springs
- 62090 Venice
- 62091 Walshville
- 62092 White Hall
- 62093 Wilsonville
- 62094 Witt
- 62095 Wood River
- 62097 Worden
- 62098 Wrights