Salem H.O is the primary post office registered under PIN code 636001 in Salem, Tamil Nadu. This code sits within the Southern Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Salem H.O | HO | Head Post Office |
| Thillainagar S.O | SO | Sub Post Office |
| Salem Collectorate S.O | SO | Sub Post Office |
