| Locality | Postal Code |
|---|---|
| Anmyeon-eup, Taean (안면읍) | 32160, 32161, 32162, 32163, 32164, … |
| Geunheung-myeon, Taean (근흥면) | 32125, 32126, 32127, 32128, 32129, … |
| Gonam-myeon, Taean (고남면) | 32170, 32171, 32172 |
| Iwon-myeon, Taean (이원면) | 32100, 32101, 32102, 32103, 32104 |
| Nam-myeon, Taean (남면) | 32146, 32151, 32152, 32153, 32154, … |
| Sowon-myeon, Taean (소원면) | 32116, 32117, 32118, 32119, 32120, … |
| Taean-eup, Taean (태안읍) | 32126, 32134, 32135, 32136, 32137, … |
| Wonbuk-myeon, Taean (원북면) | 32105, 32106, 32107, 32108, 32109, … |