| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Tainakacho (三田市) | 669-1525 |
| Postal/ZIP Codes in Takasugi (三田市) | 669-1512 |
| Postal/ZIP Codes in Tanaka (三田市) | 669-1406 |
| Postal/ZIP Codes in Tekunopaku (三田市) | 669-1339 |
| Postal/ZIP Codes in Tenjin (三田市) | 669-1531 |
| Postal/ZIP Codes in Teramuracho (三田市) | 669-1523 |
| Postal/ZIP Codes in Tokura (三田市) | 669-1404 |
| Postal/ZIP Codes in Tomogaoka (三田市) | 669-1516 |
| Postal/ZIP Codes in Tsutsujigaokakita (三田市) | 669-1348 |
| Postal/ZIP Codes in Tsutsujigaokaminami (三田市) | 669-1347 |
| Postal/ZIP Codes in Umawatari (三田市) | 669-1336 |
| Postal/ZIP Codes in Yamata (三田市) | 669-1511 |
| Postal/ZIP Codes in Yashikimachi (三田市) | 669-1532 |
| Postal/ZIP Codes in Yayoigaoka (三田市) | 669-1546 |
| Postal/ZIP Codes in Yokoyamacho (三田市) | 669-1534 |
| Postal/ZIP Codes in Yotsutsuji (三田市) | 669-1342 |
| Postal/ZIP Codes in Yurinokidai (三田市) | 669-1324 |