| Lieu | Code postal |
|---|---|
| Desa Semambu, Sumay | 37573 |
| Jati Belarik, Sumay | 37573 |
| Lembak Bungur, Sumay | 37573 |
| Muara Sekalo, Sumay | 37573 |
| Pemayungan, Sumay | 37573 |
| Puntikalo, Sumay | 37573 |
| Suo Suo, Sumay | 37573 |
| Tambun Arang, Sumay | 37573 |
| Teluk Langkap, Sumay | 37573 |
| Teluk Singkawang, Sumay | 37573 |
| Teriti, Sumay | 37573 |
| Tuo Sumay, Sumay | 37573 |