In Dharwad district, Karnataka, PIN code 580031 is anchored by Hubballi Eng College S.O, a Sub Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 2 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Hubballi Eng College S.O | SO | Sub Post Office |
| Hubballi Unkal S.O | SO | Sub Post Office |
