| Locality | Post Code |
|---|---|
| Kinoto (胎内市) | 959-2602 |
| Kitahoncho (胎内市) | 959-2647 |
| Kitanarita (胎内市) | 959-2724 |
| Kitta (胎内市) | 959-2802 |
| Kobunato (胎内市) | 959-2674 |
| Kokenomi (胎内市) | 959-2721 |
| Komakidai (胎内市) | 959-2634 |
| Konagatani (胎内市) | 959-2812 |
| Konosu (胎内市) | 959-2705 |
| Kurashikicho (胎内市) | 959-2653 |
| Kurikinoshinden (胎内市) | 959-2827 |
| Kurokawa (胎内市) | 959-2807 |
| Kuromata (胎内市) | 959-2814 |
| Kusano (胎内市) | 959-2663 |
| Kuwae (胎内市) | 959-2811 |
| Kyowacho (胎内市) | 959-2652 |
| Miyagawa (胎内市) | 959-2723 |
| Miyahisa (胎内市) | 959-2824 |
| Miyaze (胎内市) | 959-2704 |
| Mizusawacho (胎内市) | 959-2638 |
| Mochikura (胎内市) | 959-2815 |
| Momozakihama (胎内市) | 959-2601 |
| Muramatsuhama (胎内市) | 959-2709 |
| Nagahashi (胎内市) | 959-2637 |
| Nakajo (胎内市) | 959-2629 |
| Nakakura (胎内市) | 959-2716 |