| Postal/ZIP Codes in Bongsan-myeon, Yesan (봉산면) |
32402, 32403, 32404, 32405, 32411 |
| Postal/ZIP Codes in Daeheung-myeon, Yesan (대흥면) |
32447, 32448, 32449, 32450 |
| Postal/ZIP Codes in Daesul-myeon, Yesan (대술면) |
32442, 32443, 32444, 32445 |
| Postal/ZIP Codes in Deoksan-myeon, Yesan (덕산면) |
32405, 32406, 32407, 32408, 32409, … |
| Postal/ZIP Codes in Eungbong-myeon, Yesan (응봉면) |
32426, 32446, 32447 |
| Postal/ZIP Codes in Godeok-myeon, Yesan (고덕면) |
32400, 32401, 32402, 32403, 32404 |
| Postal/ZIP Codes in Gwangsi-myeon, Yesan (광시면) |
32454, 32455, 32456, 32457 |
| Postal/ZIP Codes in Oga-myeon, Yesan (오가면) |
32415, 32419, 32420, 32424, 32425, … |
| Postal/ZIP Codes in Sapgyo-eup, Yesan (삽교읍) |
32402, 32406, 32411, 32412, 32413, … |
| Postal/ZIP Codes in Sinam-myeon, Yesan (신암면) |
32413, 32417, 32418, 32419, 32420, … |
| Postal/ZIP Codes in Sinyang-myeon, Yesan (신양면) |
32451, 32452, 32453, 32454, 32455 |
| Postal/ZIP Codes in Yesan-eup, Yesan (예산읍) |
32421, 32422, 32423, 32424, 32427, … |