Kapalthurai Postal Code
| City | Postal Code | District |
|---|---|---|
| Kinniya | 31100 | Trincomalee |
| Maharugiramam | 31106 | Trincomalee |
| Kurinchakerny | 31112 | Trincomalee |
| Mutur | 31200 | Trincomalee |
| Kaddaiparichchan | 31212 | Trincomalee |
| Sampoor | 31216 | Trincomalee |
| Kiliveddy | 31220 | Trincomalee |
| Somapura | 31222 | Trincomalee |
| Mallikativu | 31224 | Trincomalee |
| Dehiwatte | 31226 | Trincomalee |
| Neelapola | 31228 | Trincomalee |
| Serunuwara | 31232 | Trincomalee |
| Lankapatuna | 31234 | Trincomalee |
| Ichchilampattai | 31236 | Trincomalee |
| Mawadichchenai | 31238 | Trincomalee |