There are 14 post offices under PIN code 631102.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ayipedu B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Jambukulam B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Karikkal B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Kesavanankuppam B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Kodakkal B.O | Branch Office | Delivery | Wallajah | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 6 | Kondapalayam B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 7 | Pandianallore B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 8 | Perunkanchi B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 9 | Rendadi B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 10 | Sholingur Bazaar S.O | Sub Office | Non-Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 11 | Sholingur S.O | Sub Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 12 | Somasamudram B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 13 | Talikkal B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |
| 14 | Vangupattu B.O | Branch Office | Delivery | Arakkonam | Vellore | Arakkonam | Chennai Region | Tamil Nadu | Tamilnadu |