530
- 53001 Adell
- 53002 Allenton
- 53003 Ashippun
- 53004 Belgium
- 53005 Brookfield
- 53006 Brownsville
- 53007 Butler
- 53010 Campbellsport
- 53011 Cascade
- 53012 Cedarburg
- 53013 Cedar Grove
- 53014 Chilton
- 53015 Cleveland
- 53016 Clyman
- 53017 Colgate
- 53018 Delafield
- 53019 Eden
- 53020 Elkhart Lake
- 53021 Fredonia
- 53022 Germantown
- 53023 Glenbeulah
- 53024 Grafton
- 53027 Hartford
- 53029 Hartland
- 53031
- 53032 Horicon
- 53033 Hubertus
- 53034 Hustisford
- 53035 Iron Ridge
- 53036 Ixonia
- 53037 Jackson
- 53038 Johnson Creek
- 53039 Juneau
- 53040 Kewaskum
- 53042 Kiel
- 53044 Kohler
- 53045 Brookfield
- 53046 Lannon
- 53047 Lebanon
- 53048 Lomira
- 53049 Malone
- 53050 Mayville
- 53051 Menomonee Falls
- 53057 Mount Calvary
- 53058 Nashotah
- 53059 Neosho
- 53061 New Holstein
- 53063 Newton
- 53065 Oakfield
- 53066 Oconomowoc
- 53069 Okauchee
- 53070 Oostburg
- 53072 Pewaukee
- 53073 Plymouth
- 53074 Port Washington
- 53075 Random Lake
- 53076 Richfield
- 53078 Rubicon
- 53079 Saint Cloud
- 53080 Saukville
- 53081 Sheboygan
- 53083 Sheboygan
- 53085 Sheboygan Falls
- 53086 Slinger
- 53088 Stockbridge
- 53089 Sussex
- 53090 West Bend
- 53091 Theresa
- 53092 Thiensville
- 53093 Waldo
- 53094 Watertown
- 53095 West Bend
- 53097 Mequon
- 53098 Watertown