| Place | Post Code |
|---|---|
| Aanaanandhal, Tiruvannamalai | 606804 |
| Aandiyapalayam, Tiruvannamalai | 606804 |
| Abbupattu, Tiruvannamalai | 606804 |
| Adaiyur, Tiruvannamalai | 606604 |
| Adiannamalai, Tiruvannamalai | 606604 |
| Agaram, Tiruvannamalai | 632316 |
| Agaramsibbandi, Tiruvannamalai | 606802 |
| Alaganandal, Tiruvannamalai | 606808 |
| Allikondapattu, Tiruvannamalai | 606811, 606753 |
| Amangalodai, Tiruvannamalai | 606752 |
| Amaravathi, Tiruvannamalai | 606811 |
| Amman Nagar, Tiruvannamalai | 606808 |
| Anapurandan, Tiruvannamalai | 606603 |
| Andalur, Tiruvannamalai | 606907 |
| Andampallam, Tiruvannamalai | 606804 |
| Angunam, Tiruvannamalai | 606804 |
| Annamalai R.F, Tiruvannamalai | 606604 |
| Annandal, Tiruvannamalai | 606902 |
| Ansolda Nagar, Tiruvannamalai | 606801 |
| Anukkumalai, Tiruvannamalai | 606754 |
| Aradapattu, Tiruvannamalai | 606808 |
| Aranji, Tiruvannamalai | 606611 |
| Arasudaiyampattu, Tiruvannamalai | 606753 |
| Ariyalur, Tiruvannamalai | 606811 |
| Ariyankuppam, Tiruvannamalai | 606611 |
| Arpakkam, Tiruvannamalai | 606752 |