| Country Population: | 278,000 |
| States: | 4 |
| Districts: | 54 |
| Primary Language: | Assamese |
| Primary Religion: | Hinduism |

| State ▲ | District | Primary Language | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
|---|---|---|---|---|---|---|---|---|---|
| Andhra Pradesh | Anakapalli | Kachari | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Andhra Pradesh | Kakinada | Kachari | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Changlang | Assamese | 8,100 | 3,100 | -1 - | 3,100 | 1,900 | -1 - | -1 - |
| Arunachal Pradesh | Dibang Valley | Assamese | 80 | 60 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Kameng, East | Dimasa | 500 | 100 | -1 - | -1 - | 400 | -1 - | -1 - |
| Arunachal Pradesh | Kra Daadi | Dimasa | 1,000 | 100 | -1 - | -1 - | 900 | -1 - | -1 - |
| Arunachal Pradesh | Kurung Kumey | Dimasa | 100 | 90 | -1 - | -1 - | 30 | -1 - | -1 - |
| Arunachal Pradesh | Lepa-Rada | Assamese | 60 | 60 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Lohit | Assamese | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Lower Dibang Valley | Assamese | 800 | 600 | -1 - | -1 - | 200 | -1 - | -1 - |
| Arunachal Pradesh | Lower Siang | Dimasa | 80 | 80 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Lower Subansiri | Dimasa | 1,200 | 600 | -1 - | -1 - | 600 | -1 - | -1 - |
| Arunachal Pradesh | Namsai | Assamese | 30 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Pakke-Kessang | Assamese | 200 | 80 | -1 - | -1 - | 100 | -1 - | -1 - |
| Arunachal Pradesh | Papum Pare | Assamese | 1,500 | 600 | -1 - | -1 - | 900 | -1 - | -1 - |
| Arunachal Pradesh | Siang | Assamese | 100 | 100 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Siang, West | Assamese | 700 | 700 | -1 - | -1 - | 20 | -1 - | -1 - |
| Arunachal Pradesh | Tirap | Assamese | 80 | 50 | -1 - | -1 - | 20 | -1 - | -1 - |
| Assam | Barpeta | Assamese | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Biswanath | Boro (India) | 40 | 40 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Bongaigaon | Boro (India) | 1,600 | 1,600 | -1 - | -1 - | 40 | -1 - | -1 - |
| Assam | Cachar | Assamese | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Charaideo | Bengali | 3,600 | 3,500 | -1 - | -1 - | 40 | -1 - | -1 - |
| Assam | Darrang | Boro (India) | 2,200 | 2,200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Dhemaji | Santhali | 25,000 | 25,000 | 20 | -1 - | 200 | -1 - | 30 |
| Assam | Dhubri | Dimasa | 200 | 200 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Dibrugarh | Mizo | 76,000 | 76,000 | 200 | -1 - | 80 | -1 - | 50 |
| Assam | Dima Hasao | Assamese | 5,300 | 5,200 | -1 - | -1 - | 80 | -1 - | -1 - |
| Assam | Goalpara | Assamese | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Golaghat | Tamil | 19,000 | 19,000 | 20 | -1 - | 400 | -1 - | 20 |
| Assam | Hojai | Mizo | 2,900 | 2,900 | -1 - | -1 - | 40 | -1 - | -1 - |
| Assam | Jorhat | Boro (India) | 18,000 | 18,000 | 80 | -1 - | 30 | -1 - | 50 |
| Assam | Kamrup | Nepali | 3,600 | 3,600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Kamrup Metropolitan | Khasi | 8,100 | 7,900 | 30 | -1 - | 100 | -1 - | -1 - |
| Assam | Kokrajhar | Hindi | 1,700 | 1,500 | -1 - | -1 - | 200 | -1 - | 30 |
| Assam | Lakhimpur | English | 19,000 | 19,000 | 30 | -1 - | 20 | -1 - | -1 - |
| Assam | Majula | Hindi | 3,600 | 3,600 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Morigaon | Karbi | 6,500 | 6,400 | 20 | -1 - | -1 - | -1 - | -1 - |
| Assam | Nagaon | Mizo | 5,600 | 5,400 | -1 - | -1 - | 200 | -1 - | -1 - |
| Assam | Nalbari | Bengali | 6,400 | 6,400 | 20 | -1 - | -1 - | -1 - | -1 - |
| Assam | Salmara-Mankachar, South | Assamese | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Sivasagar | Santhali | 5,200 | 5,100 | 30 | -1 - | 30 | -1 - | -1 - |
| Assam | Sonitpur | Boro (India) | 70 | 70 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | South Kamrup | Rabha | 3,500 | 3,400 | -1 - | -1 - | 40 | -1 - | -1 - |
| Assam | Tinsukia | Maithili | 41,000 | 40,000 | 100 | 70 | 50 | -1 - | 40 |
| Assam | Udalguri | Assamese | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Meghalaya | Garo Hills, East | Garo | 90 | 40 | -1 - | -1 - | 50 | -1 - | -1 - |
| Meghalaya | Garo Hills, North | Assamese | 100 | 70 | -1 - | -1 - | 30 | -1 - | -1 - |
| Meghalaya | Garo Hills, South | Assamese | 40 | 30 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Meghalaya | Jaintia Hills, East | Khasi | 20 | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Meghalaya | Jaintia Hills, West | Khasi | 40 | 20 | -1 - | -1 - | 20 | -1 - | -1 - |
| Meghalaya | Khasi Hills, East | Assamese | 1,800 | 1,200 | -1 - | -1 - | 600 | -1 - | -1 - |
| Meghalaya | Khasi Hills, Southwest | Bengali | 40 | -1 - | -1 - | -1 - | 30 | -1 - | -1 - |
| Meghalaya | Khasi Hills, West | Khasi | 70 | -1 - | -1 - | -1 - | 70 | -1 - | -1 - |
| States | Districts | Languages | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
| 4 | 54 | 16 | 277,000 | 265,000 | 600 | 3,300 | 7,300 | 30 | 300 |