| Country Population: | 270,000 |
| States: | 6 |
| Districts: | 107 |
| Primary Language: | Bengali |
| Primary Religion: | Hinduism |

| State ▲ | District | Primary Language | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
|---|---|---|---|---|---|---|---|---|---|
| Andaman and Nicobar Islands | Andaman, South | Bengali | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Andaman and Nicobar Islands | North and Middle Andaman | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Bajali | Bengali | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Baksa | Bengali | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Barpeta | Bengali | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Biswanath | Assamese | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Bongaigaon | Assamese | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Charaideo | Assamese | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Dhubri | Assamese | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Dibrugarh | Assamese | 700 | 700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Golaghat | Bengali | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Hojai | Bengali | 50 | 50 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Jorhat | Assamese | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Kamrup | Assamese | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Kamrup Metropolitan | Hindi | 2,700 | 2,700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Karbi Anglong | Assamese | 600 | 600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Karbi Anglong, West | Assamese | 80 | 80 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Karimganj | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Kokrajhar | Assamese | 600 | 600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Majula | Assamese | 80 | 80 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Morigaon | Assamese | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Nagaon | Bengali | 700 | 700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Nalbari | Bengali | 500 | 500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Sivasagar | Bengali | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Sonitpur | Assamese | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | South Kamrup | Assamese | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Tinsukia | Bengali | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Udalguri | Assamese | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Araria | Hindi | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Arwal | Hindi | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Aurangabad | Hindi | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Banka | Hindi | 600 | 600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Begusarai | Hindi | 1,200 | 1,200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Bhagalpur | Hindi | 800 | 800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Bhojpur | Bhojpuri | 1,200 | 1,200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Buxar | Bhojpuri | 800 | 800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Darbhanga | Maithili | 1,500 | 1,500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Gopalganj | Bhojpuri | 1,200 | 1,200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Jamui | Hindi | 600 | 600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Jehanabad | Hindi | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Kaimur | Bhojpuri | 600 | 600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Katihar | Hindi | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Khagaria | Hindi | 2,300 | 2,300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Lakhisarai | Hindi | 500 | 500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Madhepura | Hindi | 2,600 | 2,600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Madhubani | Hindi | 1,800 | 1,800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Munger | Hindi | 800 | 800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Muzaffarpur | Hindi | 900 | 900 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Nalanda | Hindi | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Nawada | Hindi | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Pashchim Champaran | Bhojpuri | 700 | 700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Patna | Bhojpuri | 800 | 800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Purba Champaran | Bhojpuri | 1,200 | 1,200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Purnia | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Rohtas | Hindi | 1,800 | 1,800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Saharsa | Hindi | 2,400 | 2,400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Samastipur | Maithili | 6,100 | 6,100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Saran | Bhojpuri | 1,500 | 1,500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Sheikhpura | Hindi | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Sheohar | Hindi | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Sitamarhi | Hindi | 800 | 800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Siwan | Bhojpuri | 2,000 | 2,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Supaul | Maithili | 2,800 | 2,800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Bihar | Vaishali | Hindi | 600 | 600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Bokaro | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Chatra | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Deoghar | Bengali | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Dhanbad | Bengali | 800 | 800 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Dumka | Bengali | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Garhwa | Hindi | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Giridih | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Godda | Bengali | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Hazaribag | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Latehar | Hindi | 60 | 60 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Palamu | Hindi | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Ramgarh | Bengali | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Ranchi | Bengali | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Singhbhum, East | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Jharkhand | Singhbhum, West | Hindi | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Tripura | Khowai | Bengali | 70 | 70 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Tripura | Sepahijala | Bengali | 80 | 80 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Tripura | Tripura, North | Bengali | 80 | 80 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Tripura | Tripura, West | Bengali | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Tripura | Unokoti | Bengali | 50 | 50 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Alipurduar | Bengali | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Bankura | Bengali | 16,000 | 16,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Birbhum | Bengali | 14,000 | 14,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Cooch Behar | Bengali | 700 | 700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Dakshin Dinajpur | Bengali | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Darjeeling | Bengali | 500 | 500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Hooghly | Bengali | 20,000 | 20,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Howrah | Bengali | 23,000 | 23,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Jalpaiguri | Bengali | 600 | 600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Jhargram | Bengali | 3,700 | 3,700 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Kalimpang | Bengali | 80 | 80 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Kolkata | Bengali | 25,000 | 25,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Maldah | Bengali | 400 | 400 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Murshidabad | Bengali | 1,600 | 1,600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Nadia | Bengali | 1,500 | 1,500 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | North 24 Parganas | Bengali | 8,900 | 8,900 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Paschim Bardhaman | Bengali | 23,000 | 23,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Paschim Medinipur | Bengali | 20,000 | 20,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purba Bardhaman | Bengali | 17,000 | 17,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purba Medinipur | Bengali | 19,000 | 19,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Purulia | Bengali | 1,000 | 1,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | South 24 Parganas | Bengali | 19,000 | 19,000 | -1 - | -1 - | -1 - | -1 - | -1 - |
| West Bengal | Uttar Dinajpur | Bengali | 300 | 300 | -1 - | -1 - | -1 - | -1 - | -1 - |
| States | Districts | Languages | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
| 6 | 107 | 5 | 270,000 | 270,000 | 0 | 0 | 0 | 0 | 0 |