Pethanaickenpalayam S.O is the primary post office registered under PIN code 636109 in Salem, Tamil Nadu. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Pethanaickenpalayam S.O | SO | Sub Post Office |
| Kalpaganur B.O | BO | Branch Post Office |
| Dalavaipatti B.O | BO | Branch Post Office |
| Olapadi B.O | BO | Branch Post Office |
