ZIP Code Area 221XX
- ZIP Code Area 22101
- ZIP Code Area 22102
- ZIP Code Area 22124
- ZIP Code Area 22125
- ZIP Code Area 22134
- ZIP Code Area 22150
- ZIP Code Area 22151
- ZIP Code Area 22152
- ZIP Code Area 22153
- ZIP Code Area 22172
- ZIP Code Area 22180
- ZIP Code Area 22181
- ZIP Code Area 22182
- ZIP Code Area 22185
- ZIP Code Area 22191
- ZIP Code Area 22192
- ZIP Code Area 22193