| Place | Post Code |
|---|---|
| Iranai Illupaikulam, Madhu | None |
| Kakkayankulam East, Madhu | None |
| Kakkayankulam West, Madhu | None |
| Kalmadu, Madhu | None |
| Keerisuddan, Madhu | None |
| Madhu, Madhu | None |
| Maluvarayarkaddayadampan, Madhu | None |
| Matha Kiramam, Madhu | None |
| Palampiddy, Madhu | None |
| Pannavedduvan, Madhu | None |
| Parasankulam, Madhu | None |
| Periya-Pandivirichchan East, Madhu | None |
| Periya-Pandivirichchan West, Madhu | None |
| Periyamurippu, Madhu | None |
| Poomalarnthan, Madhu | None |
| Thekkam, Madhu | None |
| Vilaththikulam, Madhu | None |
| All postal codes in Mannar | |
|---|---|
| Madhu, Mannar | |
| Mannar Town, Mannar | |
| Manthai West, Mannar | |
| Musalai, Mannar | |
| Nanaddan, Mannar | |