| Locality | Post Code |
|---|---|
| Nishiyamacho Chuodai (柏崎市) | 949-4125 |
| Nishiyamacho Fujikake (柏崎市) | 949-4122 |
| Nishiyamacho Futada (柏崎市) | 949-4134 |
| Nishiyamacho Haizume (柏崎市) | 949-4114 |
| Nishiyamacho Hamatsuda (柏崎市) | 949-4205 |
| Nishiyamacho Ikeura (柏崎市) | 949-4123 |
| Nishiyamacho Imo (柏崎市) | 949-4128 |
| Nishiyamacho Ishiji (柏崎市) | 949-4201 |
| Nishiyamacho Itsukaichi (柏崎市) | 949-4149 |
| Nishiyamacho Kamata (柏崎市) | 949-4127 |
| Nishiyamacho Kamiyamada (柏崎市) | 949-4113 |
| Nishiyamacho Kitano (柏崎市) | 949-4145 |
| Nishiyamacho Koda (柏崎市) | 949-4206 |
| Nishiyamacho Kurobe (柏崎市) | 949-4142 |
| Nishiyamacho Midorigaoka (柏崎市) | 949-4136 |
| Nishiyamacho Myohoji (柏崎市) | 949-4146 |
| Nishiyamacho Nagamine (柏崎市) | 949-4132 |
| Nishiyamacho Nishiyama (柏崎市) | 949-4141 |
| Nishiyamacho Omachi (柏崎市) | 949-4202 |
| Nishiyamacho Onio (柏崎市) | 949-4133 |
| Nishiyamacho Onochi (柏崎市) | 949-4112 |
| Nishiyamacho Osaki (柏崎市) | 949-4204 |
| Nishiyamacho Otsubo (柏崎市) | 949-4147 |
| Nishiyamacho Ozu (柏崎市) | 949-4203 |
| Nishiyamacho Raihai (柏崎市) | 949-4124 |
| Nishiyamacho Sakata (柏崎市) | 949-4135 |