| State ▲ | District | Primary Language | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
|---|---|---|---|---|---|---|---|---|---|
| Bihar | Araria | Bengali | 1,200 | -1 - | 1,200 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Arwal | Urdu | 20 | -1 - | 20 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Banka | Bengali | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Begusarai | Urdu | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Bhagalpur | Bengali | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Bhojpur | Bhojpuri | 200 | -1 - | 200 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Buxar | Urdu | 200 | -1 - | 200 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Jamui | Bengali | 60 | -1 - | 60 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Jehanabad | Bengali | 20 | -1 - | 20 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Kaimur | Bhojpuri | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Katihar | Maithili | 1,300 | -1 - | 1,300 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Khagaria | Bengali | 50 | -1 - | 50 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Kishanganj | Bengali | 700 | -1 - | 700 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Lakhisarai | Bengali | 30 | -1 - | 30 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Madhepura | Bengali | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Munger | Bengali | 40 | -1 - | 40 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Nalanda | Bengali | 30 | -1 - | 30 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Patna | Bengali | 80 | -1 - | 80 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Purnia | Urdu | 2,300 | -1 - | 2,300 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Rohtas | Bengali | 300 | -1 - | 300 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Saharsa | Bengali | 200 | -1 - | 200 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Samastipur | Bengali | 80 | -1 - | 80 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Sheikhpura | Bengali | 20 | -1 - | 20 | -1 - | -1 - | -1 - | -1 - |
| Bihar | Supaul | Urdu | 200 | -1 - | 200 | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Seraikela Kharsawan | Bengali | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Singhbhum, East | Bengali | 20 | -1 - | 20 | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Singhbhum, West | Bengali | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Odisha | Balasore | Bengali | 200 | -1 - | 200 | -1 - | -1 - | -1 - | -1 - |
| Odisha | Bhadrak | Odia | 200 | -1 - | 200 | -1 - | -1 - | -1 - | -1 - |
| Odisha | Cuttack | Bengali | 300 | -1 - | 300 | -1 - | -1 - | -1 - | -1 - |
| Odisha | Jagatsinghpur | Bengali | 80 | -1 - | 80 | -1 - | -1 - | -1 - | -1 - |
| Odisha | Jajpur | Odia | 70 | -1 - | 70 | -1 - | -1 - | -1 - | -1 - |
| Odisha | Kendrapara | Bengali | 90 | -1 - | 90 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Alipurduar | Bengali | 40 | -1 - | 40 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Birbhum | Bengali | 2,400 | -1 - | 2,400 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Dakshin Dinajpur | Bengali | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Darjeeling | Bengali | 300 | -1 - | 300 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Hooghly | Bengali | 4,800 | -1 - | 4,800 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Howrah | Bengali | 2,500 | -1 - | 2,500 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Jalpaiguri | Bengali | 100 | -1 - | 100 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Jhargram | Bengali | 60 | -1 - | 60 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Kalimpang | Bengali | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Maldah | Bengali | 900 | -1 - | 900 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Murshidabad | Bengali | 2,000 | -1 - | 2,000 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | North 24 Parganas | Bengali | 9,700 | -1 - | 9,700 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Paschim Bardhaman | Bengali | 900 | -1 - | 900 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Paschim Medinipur | Bengali | 900 | -1 - | 900 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purba Bardhaman | Bengali | 300 | -1 - | 300 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purba Medinipur | Bengali | 1,000 | -1 - | 1,000 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | South 24 Parganas | Bengali | 15,000 | -1 - | 15,000 | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Uttar Dinajpur | Bengali | 200 | -1 - | 200 | -1 - | -1 - | -1 - | -1 - |
| States | Districts | Languages | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
| 4 | 51 | 5 | 49,000 | 0 | 49,000 | 0 | 0 | 0 | 0 |