There are 3 sub-divisions and 20 blocks in Garhwa district.
| Sl No. | District | Block |
|---|---|---|
| 1 | Garhwa | Kharaundhi |
| 2 | Garhwa | Bhawnathpur |
| 3 | Garhwa | Ketar |
| 4 | Garhwa | Kandi |
| 5 | Garhwa | Majhiaon |
| 6 | Garhwa | Bardiha |
| 7 | Garhwa | Ramna |
| 8 | Garhwa | Bishunpura |
| 9 | Garhwa | Nagaruntari |
| 10 | Garhwa | Dhurki |
| 11 | Garhwa | Sagma |
| 12 | Garhwa | Dandai |
| 13 | Garhwa | Chinia |
| 14 | Garhwa | Meral (Pipra Kalan) |
| 15 | Garhwa | Garhwa |
| 16 | Garhwa | Danda |
| 17 | Garhwa | Ranka |
| 18 | Garhwa | Ramkanda |
| 19 | Garhwa | Bhandaria |
| 20 | Garhwa | Baragar |