ZIP Code Area 531XX
- ZIP Code Area 53103
- ZIP Code Area 53104
- ZIP Code Area 53105
- ZIP Code Area 53108
- ZIP Code Area 53110
- ZIP Code Area 53114
- ZIP Code Area 53115
- ZIP Code Area 53118
- ZIP Code Area 53119
- ZIP Code Area 53120
- ZIP Code Area 53121
- ZIP Code Area 53122
- ZIP Code Area 53125
- ZIP Code Area 53126
- ZIP Code Area 53128
- ZIP Code Area 53129
- ZIP Code Area 53130
- ZIP Code Area 53132
- ZIP Code Area 53137
- ZIP Code Area 53139
- ZIP Code Area 53140
- ZIP Code Area 53142
- ZIP Code Area 53143
- ZIP Code Area 53144
- ZIP Code Area 53146
- ZIP Code Area 53147
- ZIP Code Area 53149
- ZIP Code Area 53150
- ZIP Code Area 53151
- ZIP Code Area 53153
- ZIP Code Area 53154
- ZIP Code Area 53156
- ZIP Code Area 53158
- ZIP Code Area 53167
- ZIP Code Area 53168
- ZIP Code Area 53170
- ZIP Code Area 53172
- ZIP Code Area 53177
- ZIP Code Area 53178
- ZIP Code Area 53179
- ZIP Code Area 53181
- ZIP Code Area 53182
- ZIP Code Area 53183
- ZIP Code Area 53184
- ZIP Code Area 53185
- ZIP Code Area 53186
- ZIP Code Area 53188
- ZIP Code Area 53189
- ZIP Code Area 53190
- ZIP Code Area 53191
- ZIP Code Area 53192
- ZIP Code Area 53195