| Postal/ZIP Codes in Bureun-myeon, Ganghwa (불은면) |
23038, 23045, 23046, 23047, 23048 |
| Postal/ZIP Codes in Ganghwa-eup, Ganghwa (강화읍) |
23021, 23022, 23023, 23024, 23025, … |
| Postal/ZIP Codes in Gilsang-myeon, Ganghwa (길상면) |
23048, 23049, 23050, 23051, 23052, … |
| Postal/ZIP Codes in Gyodong-myeon, Ganghwa (교동면) |
23000, 23001, 23002, 23003 |
| Postal/ZIP Codes in Hajeom-myeon, Ganghwa (하점면) |
23011, 23013, 23014, 23015, 23016 |
| Postal/ZIP Codes in Hwado-myeon, Ganghwa (화도면) |
23051, 23052, 23059, 23060, 23061, … |
| Postal/ZIP Codes in Naega-myeon, Ganghwa (내가면) |
23017, 23018, 23054 |
| Postal/ZIP Codes in Samsan-myeon, Ganghwa (삼산면) |
23004, 23005, 23006, 23007, 23009 |
| Postal/ZIP Codes in Seodo-myeon, Ganghwa (서도면) |
23008, 23010 |
| Postal/ZIP Codes in Seonwon-myeon, Ganghwa (선원면) |
23038, 23039, 23040, 23041, 23042, … |
| Postal/ZIP Codes in Songhae-myeon, Ganghwa (송해면) |
23013, 23019, 23020 |
| Postal/ZIP Codes in Yangdo-myeon, Ganghwa (양도면) |
23038, 23055, 23056, 23057, 23058 |
| Postal/ZIP Codes in Yangsa-myeon, Ganghwa (양사면) |
23011, 23012, 23015 |