| Locality | Postal Code |
|---|---|
| Katsumotocho Tateishiminamifure (壱岐市) | 811-5555 |
| Katsumotocho Tateishinakafure (壱岐市) | 811-5554 |
| Katsumotocho Tateishinishifure (壱岐市) | 811-5556 |
| Katsumotocho Uwabafure (壱岐市) | 811-5543 |
| Katsumotocho Yunomotora (壱岐市) | 811-5551 |
| Katsumotocho Yurihatafure (壱岐市) | 811-5552 |
| Others (壱岐市) | 811-5100 |