Koilwan is located in the district of Aurangabad, Bihar. The pincode of Koilwan is 824115. The area "Koilwan" lies under takula of Haspura and has a Branch Office. Koilwan comes under the head office Aurangabad (BH). The postal division for pin code 824115 is Aurangabad(Bihar).
| Area | Koilwan |
| Pincode | 824115 |
| Taluka or Tehsil | Haspura |
| District | Aurangabad |
| State | Bihar |
| Office Status | Branch Office |
| Postal Division | Aurangabad(Bihar) |
| Postal Region | Patna HQ |
| Sub Office | Sihari |
| Head Office | Aurangabad (BH) |
| Contact Address | Postmaster, Post Office Koilwan (Branch Office), Haspura, Bihar, India, Pin Code: 824115 |
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 824115 | Anurahi pin code | Arwal | Kaler | Branch Office |
| 824115 | Dhamni pin code | Aurangabad | Haspura | Branch Office |
| 824115 | Jhinguri pin code | Aurangabad | Haspura | Branch Office |
| 824115 | Koilwan pin code | Aurangabad | Haspura | Branch Office |
| 824115 | Sihari pin code | Aurangabad | Haspura | Sub Office |
| 824115 | Sonhathu pin code | Aurangabad | Haspura | Branch Office |
Note: While we try to make the pincode data as accurate as possible, sometimes there might be inaccuracy in data. Please feel free and point it out in the below comment section.