| Place | Post Code |
|---|---|
| Melavanjore, Nagapattinam | 611002 |
| Melavasal, Nagapattinam | 609504 |
| Moongikudi, Nagapattinam | 611109 |
| Mooveli, Nagapattinam | 611109 |
| Mudikondan, Nagapattinam | 611104 |
| Mudliur Panangudi, Nagapattinam | 611002 |
| Mundram Vaikal Saint, Nagapattinam | 611108 |
| Munivinayagampettai, Nagapattinam | 611109 |
| Nadar Saint, Nagapattinam | 611108 |
| Nadu Saint, Nagapattinam | 611108 |
| Nagapattinam, Nagapattinam | 611001, 611106 |
| Nagappattinam, Nagapattinam | 611001, 611003 |
| Nagore, Nagapattinam | 611002 |
| Nagore Main Road, Nagapattinam | 611108 |
| Nallkudi, Nagapattinam | 610101 |
| Nambikainagar, Nagapattinam | 611002 |
| Naranamangalam, Nagapattinam | 611102, 611002 |
| Narasingamangalam, Nagapattinam | 611102 |
| Narimanam, Nagapattinam | 611002 |
| Natham, Nagapattinam | 609704 |
| Nattarmangalam, Nagapattinam | 609703 |
| Nedunchery, Nagapattinam | 609504 |
| Neeliyamman Kovil Saint, Nagapattinam | 611108 |
| Neikunnam, Nagapattinam | 609702 |
| Nethiyappettai, Nagapattinam | 610101 |
| New Colony, Nagapattinam | 611002 |