Gonisomanahalli B.O is the primary post office registered under PIN code 573121 in Hassan, Karnataka. This code sits within the Southern Postal Region, with 10 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Gonisomanahalli B.O | BO | Branch Post Office |
| Hebbalu B.O | BO | Branch Post Office |
| Chatchatahalli B.O | BO | Branch Post Office |
| Mathighatta B.O | BO | Branch Post Office |
| Rajanasiriyur B.O | BO | Branch Post Office |
| Halebeedu S.O | SO | Sub Post Office |
| Cheelanayakanahalli B.O | BO | Branch Post Office |
| Adagur B.O | BO | Branch Post Office |
| Ghattadahalli B.O | BO | Branch Post Office |
| Sannenahalli B.O | BO | Branch Post Office |
