| Place | Post Code |
|---|---|
| Kakkamozhi, Nagapattinam | 609604 |
| Kalampadi, Nagapattinam | 611108 |
| Kalani Saint, Nagapattinam | 611108 |
| Kaliamman Kovil Saint, Nagapattinam | 611108 |
| Kallar, Nagapattinam | 611106 |
| Kallikattu Polagam, Nagapattinam | 609703 |
| Kalluli Thiru Vasal, Nagapattinam | 609702 |
| Kamarajapuram, Nagapattinam | 610101 |
| Kangalanchery, Nagapattinam | 610101 |
| Karaiyur, Nagapattinam | 610101 |
| Karambai, Nagapattinam | 609702 |
| Karimedu, Nagapattinam | 611002 |
| Karudankattalai, Nagapattinam | 609704 |
| Karuvalangadai, Nagapattinam | 611102 |
| Kattumavadi, Nagapattinam | 609703 |
| Kavali, Nagapattinam | 609504 |
| Kayattur, Nagapattinam | 609701 |
| Keechankuppam, Nagapattinam | 611106 |
| Keechankuppam Main Road, Nagapattinam | 611106 |
| Keela Andhanpettai, Nagapattinam | 611106 |
| Keelapakkam, Nagapattinam | 609701 |
| Keelapudanur, Nagapattinam | 609704 |
| Keelavanjore, Nagapattinam | 611002 |
| Keezha Karaiirru, Nagapattinam | 611108 |
| Keezhakottamangalam, Nagapattinam | 609703 |
| Keezhapanankattur, Nagapattinam | 609703 |