| State ▲ | District | Primary Language | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
|---|---|---|---|---|---|---|---|---|---|
| Bihar | Araria | Hindi | 3,300 | 3,300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Arwal | Bengali | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Aurangabad | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Banka | Hindi | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Begusarai | Hindi | 70 | 70 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Bhagalpur | Hindi | 1,100 | 1,100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Bhojpur | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Buxar | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Darbhanga | Maithili | 30,000 | 30,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Gaya | Hindi | 1,600 | 1,600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Gopalganj | Bhojpuri | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Jamui | Hindi | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Jehanabad | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Kaimur | Bhojpuri | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Katihar | Hindi | 6,600 | 6,600 | -1 - | -1 - | 60 | -1 - | -1 - |
| Bihar | Khagaria | Hindi | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Kishanganj | Hindi | 11,000 | 11,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Madhepura | Hindi | 1,800 | 1,800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Madhubani | Hindi | 11,000 | 11,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Munger | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Muzaffarpur | Hindi | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Nalanda | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Nawada | Hindi | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Pashchim Champaran | Hindi | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Patna | Hindi | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Purba Champaran | Bhojpuri | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Purnia | Hindi | 6,300 | 6,200 | -1 - | -1 - | 40 | -1 - | -1 - |
| Bihar | Rohtas | Bhojpuri | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Saharsa | Hindi | 700 | 700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Samastipur | Hindi | 4,700 | 4,700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Saran | Bhojpuri | 40 | 40 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Sheikhpura | Hindi | 500 | 500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Sitamarhi | Maithili | 500 | 500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Supaul | Maithili | 3,800 | 3,800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Bokaro | Hindi | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Deoghar | Bengali | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Dhanbad | Hindi | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Garhwa | Hindi | 50 | 50 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Giridih | Hindi | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Gumla | Hindi | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Hazaribag | Hindi | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Koderma | Hindi | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Palamu | Hindi | 70 | 70 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Ramgarh | Hindi | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Ranchi | Hindi | 70 | 70 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Seraikela Kharsawan | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Simdega | Hindi | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Singhbhum, East | Hindi | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Singhbhum, West | Bengali | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Odisha | Balasore | Odia | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Odisha | Bhadrak | Odia | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Odisha | Mayurbhanj | Bengali | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Alipurduar | Bengali | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Cooch Behar | Bengali | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Dakshin Dinajpur | Bengali | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Hooghly | Bengali | 40 | 40 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Howrah | Bengali | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Jalpaiguri | Bengali | 50 | 50 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Jhargram | Bengali | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Kolkata | Bengali | 60 | 60 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Maldah | Bengali | 3,900 | 3,800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Murshidabad | Bengali | 90 | 90 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Nadia | Bengali | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | North 24 Parganas | Bengali | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Paschim Bardhaman | Bengali | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Paschim Medinipur | Bengali | 40 | 40 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purba Bardhaman | Bengali | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purba Medinipur | Bengali | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purulia | Bengali | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | South 24 Parganas | Bengali | 40 | 40 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Uttar Dinajpur | Bengali | 1,100 | 1,100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| States | Districts | Languages | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
| 4 | 71 | 5 | 91,000 | 91,000 | 0 | 30 | 100 | 0 | 0 |