Kahalgaon is Taluka (Tehsil) in Bhagalpur district of Bihar state. Kahalgaon has 10 areas (postal offices). Kahalgaon has a Sub Office and the PIN Code of Kahalgaon is 813203.
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 813204 | Ekchari PIN Code | Bhagalpur | Kahalgaon | Sub Office |
| 813205 | Ghogha PIN Code | Bhagalpur | Kahalgaon | Sub Office |
| 813203 | Kahalgaon PIN Code | Bhagalpur | Kahalgaon | Sub Office |
| 813203 | Lalapur Bhader PIN Code | Bhagalpur | Kahalgaon | Branch Office |
| 813222 | Laxmipur PIN Code | Bhagalpur | Kahalgaon | Branch Office |
| 813203 | Mahesh Munda PIN Code | Bhagalpur | Kahalgaon | Branch Office |
| 813205 | Mangachak PIN Code | Bhagalpur | Kahalgaon | Branch Office |
| 813222 | Mathurapur Bhagalpur PIN Code | Bhagalpur | Kahalgaon | Sub Office |
| 813203 | Sangitbaita PIN Code | Bhagalpur | Kahalgaon | Branch Office |
| 813203 | Shobnathpur PIN Code | Bhagalpur | Kahalgaon | Branch Office |