Wallajah is Taluka (Tehsil) in Vellore district of Tamil Nadu state. Wallajah has 10 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 632501 | Ammoor PIN Code | Vellore | Wallajah | Sub Office |
| 632520 | Chengalnatham PIN Code | Vellore | Wallajah | Branch Office |
| 631102 | Kodakkal PIN Code | Vellore | Wallajah | Branch Office |
| 632404 | Manthangal PIN Code | Vellore | Wallajah | Branch Office |
| 632508 | Pagaveli PIN Code | Vellore | Wallajah | Branch Office |
| 632501 | Periasengadu PIN Code | Vellore | Wallajah | Branch Office |
| 632515 | Seekarajapuram PIN Code | Vellore | Wallajah | Branch Office |
| 632501 | Velam PIN Code | Vellore | Wallajah | Branch Office |
| 632513 | Walajapet PIN Code | Vellore | Wallajah | Sub Office |
| 632513 | Walajapet Bazaar PIN Code | Vellore | Wallajah | Sub Office |