| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Takayanagicho Urushijima (柏崎市) | 945-1511 |
| Postal/ZIP Codes in Takayanagicho Yamanaka (柏崎市) | 945-1503 |
| Postal/ZIP Codes in Takaze (柏崎市) | 949-3673 |
| Postal/ZIP Codes in Tanaka (柏崎市) | 945-0816 |
| Postal/ZIP Codes in Tanne (柏崎市) | 945-0857 |
| Postal/ZIP Codes in Tatsuka (柏崎市) | 945-0032 |
| Postal/ZIP Codes in Taya (柏崎市) | 945-1248 |
| Postal/ZIP Codes in Tojo (柏崎市) | 949-3731 |
| Postal/ZIP Codes in Tokiwadai (柏崎市) | 945-0834 |
| Postal/ZIP Codes in Tonowacho (柏崎市) | 945-0854 |
| Postal/ZIP Codes in Tsurugi (柏崎市) | 945-0105 |
| Postal/ZIP Codes in Wakabacho (柏崎市) | 945-0833 |
| Postal/ZIP Codes in Warabino (柏崎市) | 949-3671 |
| Postal/ZIP Codes in Yamadani (柏崎市) | 949-3726 |
| Postal/ZIP Codes in Yamaguchi (柏崎市) | 945-1116 |
| Postal/ZIP Codes in Yamamoto (柏崎市) | 945-0013 |
| Postal/ZIP Codes in Yamamuro (柏崎市) | 945-1437 |
| Postal/ZIP Codes in Yamatocho (柏崎市) | 945-0075 |