Korea District has 8 tehsil office. Data are based on census 2011.
| S.No | Tehsil | Geographical Area(Sqr.Km) | Population | Total | |
|---|---|---|---|---|---|
| Male Population | Female Population | ||||
| 1 | Baikunthpur | 562.21 | 101408 | 97545 | 1989953 |
| 2 | Sonhat | 354.21 | 24549 | 23925 | 48474 |
| 3 | Bharatpur | 2300.94 | 44528 | 44222 | 88750 |
| 4 | manendragarh | 463.83 | 75889 | 73104 | 148993 |
| 5 | Khadgawan | 2296.01 | 88363 | 85384 | 173747 |
| 6 | Chirmiri | – | – | – | – |
| 7 | Kelhari | – | – | – | – |
| 8 | Patna | – | – | – | – |
| 7 | Total | 5977.70 | 334737 | 324180> | 658917 |