Rajoun is Taluka (Tehsil) in Banka district of Bihar state. Rajoun has 12 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 813107 | Bamdev PIN Code | Banka | Rajoun | Branch Office |
| 813109 | Bindi PIN Code | Banka | Rajoun | Branch Office |
| 813109 | Chandedih PIN Code | Banka | Rajoun | Branch Office |
| 813107 | Gopalpur PIN Code | Banka | Rajoun | Branch Office |
| 813109 | Jotha PIN Code | Banka | Rajoun | Branch Office |
| 813109 | Kolhatha PIN Code | Banka | Rajoun | Branch Office |
| 813107 | Lakra PIN Code | Banka | Rajoun | Branch Office |
| 813107 | Morma PIN Code | Banka | Rajoun | Branch Office |
| 813109 | Orhore PIN Code | Banka | Rajoun | Branch Office |
| 813107 | Patsorikhaira PIN Code | Banka | Rajoun | Branch Office |
| 813107 | Ramjdha PIN Code | Banka | Rajoun | Branch Office |
| 813107 | Uprama PIN Code | Banka | Rajoun | Branch Office |