Thirthahalli is Taluka (Tehsil) in Shimoga district of Karnataka state. Thirthahalli has 12 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 577232 | Bejjavalli PIN Code | Shimoga | Thirthahalli | Sub Office |
| 577432 | Heggodu PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577432 | Kadathur PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577424 | Karunapura PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577415 | Kattehakklu PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577415 | Makkimane PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577220 | Mandagadde PIN Code | Shimoga | Thirthahalli | Sub Office |
| 577424 | Nalur PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577414 | Nonabur PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577422 | Saru PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577424 | Sirur PIN Code | Shimoga | Thirthahalli | Branch Office |
| 577432 | Untoorkatte PIN Code | Shimoga | Thirthahalli | Branch Office |