420
- 42001 Paducah
- 42003 Paducah
- 42020 Almo
- 42021 Arlington
- 42022 Bandana
- 42023 Bardwell
- 42024 Barlow
- 42025 Benton
- 42027 Boaz
- 42028 Burna
- 42029 Calvert City
- 42031 Clinton
- 42032 Columbus
- 42035 Cunningham
- 42036 Dexter
- 42037 Dycusburg
- 42038 Eddyville
- 42039 Fancy Farm
- 42040 Farmington
- 42041 Fulton
- 42044 Gilbertsville
- 42045 Grand Rivers
- 42047 Hampton
- 42048 Hardin
- 42049 Hazel
- 42050 Hickman
- 42051 Hickory
- 42053 Kevil
- 42054 Kirksey
- 42055 Kuttawa
- 42056 La Center
- 42058 Ledbetter
- 42060 Lovelaceville
- 42061 Lowes
- 42064 Marion
- 42066 Mayfield
- 42069 Melber
- 42071 Murray
- 42076 New Concord
- 42078 Salem
- 42079 Sedalia
- 42081 Smithland
- 42082 Symsonia
- 42083 Tiline
- 42084
- 42085 Water Valley
- 42086 West Paducah
- 42087 Wickliffe
- 42088 Wingo