550
- 55001 Afton
- 55003 Bayport
- 55005 Bethel
- 55006 Braham
- 55007 Brook Park
- 55008 Cambridge
- 55009 Cannon Falls
- 55011 Cedar
- 55012 Center City
- 55013 Chisago City
- 55014 Circle Pines
- 55016 Cottage Grove
- 55017 Dalbo
- 55018 Dennison
- 55019 Dundas
- 55020 Elko New Market
- 55021 Faribault
- 55024 Farmington
- 55025 Forest Lake
- 55026 Frontenac
- 55027 Goodhue
- 55029 Grandy
- 55030 Grasston
- 55031 Hampton
- 55032 Harris
- 55033 Hastings
- 55036 Henriette
- 55037 Hinckley
- 55038 Hugo
- 55040 Isanti
- 55041 Lake City
- 55042 Lake Elmo
- 55043 Lakeland
- 55044 Lakeville
- 55045 Lindstrom
- 55046 Lonsdale
- 55047 Marine On Saint Croix
- 55049 Medford
- 55051 Mora
- 55052 Morristown
- 55053 Nerstrand
- 55054 Elko New Market
- 55055 Newport
- 55056 North Branch
- 55057 Northfield
- 55060 Owatonna
- 55063 Pine City
- 55065 Randolph
- 55066 Red Wing
- 55068 Rosemount
- 55069 Rush City
- 55070 Saint Francis
- 55071 Saint Paul Park
- 55072 Sandstone
- 55073 Scandia
- 55074 Shafer
- 55075 South Saint Paul
- 55076 Inver Grove Heights
- 55077 Inver Grove Heights
- 55079 Stacy
- 55080 Stanchfield
- 55082 Stillwater
- 55084 Taylors Falls
- 55085 Vermillion
- 55087 Warsaw
- 55088 Webster
- 55089 Welch
- 55090 Willernie
- 55092 Wyoming