| Locality | Postal Code |
|---|---|
| Nishiyamacho (熱海市) | 413-0034 |
| Others (熱海市) | 413-0000 |
| Sakimicho (熱海市) | 413-0019 |
| Sakuracho (熱海市) | 413-0028 |
| Sakuragicho (熱海市) | 413-0025 |
| Sasaragadaicho (熱海市) | 413-0037 |
| Shimizucho (熱海市) | 413-0021 |
| Shimotaga (熱海市) | 413-0102 |
| Showacho (熱海市) | 413-0022 |
| Taharahoncho (熱海市) | 413-0011 |
| Wadacho (熱海市) | 413-0024 |
| Wadahamaminamicho (熱海市) | 413-0023 |
| Yamatecho (熱海市) | 413-0042 |