Omanthai Postal Code
| City | Postal Code | District |
|---|---|---|
| Maraiyadithakulam | 43055 | Vavuniya |
| Chemamadukkulam | 43060 | Vavuniya |
| Palamoddai | 43065 | Vavuniya |
| Puliyankulam | 43070 | Vavuniya |
| Kanagarayankulam | 43072 | Vavuniya |
| Nedunkerny | 43075 | Vavuniya |
| Mamaduwa | 43078 | Vavuniya |
| Mahakachchakodiya | 43080 | Vavuniya |
| Sasthirikoolankulam | 43090 | Vavuniya |
| Iranaiiluppaikulam | 43095 | Vavuniya |
| Neriyakulam | 43100 | Vavuniya |
| Pavatkulam | 43105 | Vavuniya |
| Periyaulukkulam | 43110 | Vavuniya |
| Cheddikulam | 43120 | Vavuniya |
| Varikuddiyoor | 43123 | Vavuniya |