| Postal/ZIP Codes in Baekseok-Dong, Cheonan - Seobuk (백석동) |
31087, 31088, 31091, 31092, 31093, … |
| Postal/ZIP Codes in Budae-Dong, Cheonan - Seobuk (부대동) |
31077, 31079, 31080, 31084 |
| Postal/ZIP Codes in Buldang-Dong, Cheonan - Seobuk (불당동) |
31156, 31157, 31161, 31162, 31163, … |
| Postal/ZIP Codes in Chaam-Dong, Cheonan - Seobuk (차암동) |
31040, 31074, 31075, 31085, 31093 |
| Postal/ZIP Codes in Dujeong-Dong, Cheonan - Seobuk (두정동) |
31089, 31090, 31099, 31100, 31101, … |
| Postal/ZIP Codes in Eopseong-Dong, Cheonan - Seobuk (업성동) |
31040, 31075, 31076, 31077, 31079, … |
| Postal/ZIP Codes in Ipjang-myeon, Cheonan - Seobuk (입장면) |
31025, 31026, 31027, 31033, 31043, … |
| Postal/ZIP Codes in Jiksan-eup, Cheonan - Seobuk (직산읍) |
31009, 31020, 31028, 31029, 31030, … |
| Postal/ZIP Codes in Seonggeo-eup, Cheonan - Seobuk (성거읍) |
31034, 31037, 31041, 31042, 31043, … |
| Postal/ZIP Codes in Seonghwan-eup, Cheonan - Seobuk (성환읍) |
31000, 31001, 31002, 31003, 31004, … |
| Postal/ZIP Codes in Seongjeong-Dong, Cheonan - Seobuk (성정동) |
31104, 31108, 31109, 31110, 31114, … |
| Postal/ZIP Codes in Seongseong-Dong, Cheonan - Seobuk (성성동) |
31074, 31075, 31076, 31077, 31078, … |
| Postal/ZIP Codes in Sindang-Dong, Cheonan - Seobuk (신당동) |
31037, 31050, 31080, 31081, 31082, … |
| Postal/ZIP Codes in Ssangyong-Dong, Cheonan - Seobuk (쌍용동) |
31149, 31151, 31154, 31155, 31161, … |
| Postal/ZIP Codes in Wachon-Dong, Cheonan - Seobuk (와촌동) |
31144, 31145, 31152, 31153 |