| Ort | Postleitzahl |
|---|---|
| Abrahampuram, Thiruvallur | 602023 |
| Agaram, Thiruvallur | 602108, 631203, 602025 |
| Allikuzhi, Thiruvallur | 602023 |
| Allikuzhi R.F, Thiruvallur | 602023 |
| Ammanambakkam, Thiruvallur | 631304, 601103 |
| Aranvoyal, Thiruvallur | 602025 |
| Arikkambattu, Thiruvallur | 601103 |
| Arumbakkam, Thiruvallur | 602023, 602021 |
| Attupakkam, Thiruvallur | 601102, 631203 |
| Ayalur, Thiruvallur | 602025 |
| Ayathur, Thiruvallur | 602024 |
| Chithambakkam, Thiruvallur | 602021 |
| Chitrambakkam, Thiruvallur | 631402 |
| Chittathur, Thiruvallur | 602021, 601103 |
| Damaraipakkam, Thiruvallur | 601103 |
| Egattur, Thiruvallur | 631203 |
| Eraiyur, Thiruvallur | 602021 |
| Erayamangalam, Thiruvallur | 631402 |
| Gengulukandigai, Thiruvallur | 602023 |
| Gerugampoondi, Thiruvallur | 602021 |
| Govindamedu, Thiruvallur | 631402 |
| Greenvelnatham, Thiruvallur | 602023 |
| Guruvoyal, Thiruvallur | 600052, 601103 |
| Hudsonnagaram, Thiruvallur | 602023 |
| Hudsonpuram, Thiruvallur | 602023 |
| Ikkadu, Thiruvallur | 602021 |