| People Group | Primary Language | Population | Hindu | Muslim | Christian | Buddhist | Sikh | Other |
|---|---|---|---|---|---|---|---|---|
| Assamese (Muslim traditions) | Assamese | 460 | 0 | 460 | 0 | 0 | 0 | 0 |
| Bauri | Bengali | 220 | 220 | 0 | 0 | 0 | 0 | 0 |
| Burmese | Burmese | 800 | 0 | 0 | 30 | 770 | 0 | 0 |
| Chakma | Chakma | 1,020 | 110 | 0 | 180 | 730 | 0 | 0 |
| Garo (A-chik Mande) | Garo | 60 | 0 | 0 | 60 | 0 | 0 | 0 |
| Hadi | Bengali | 90 | 90 | 0 | 0 | 0 | 0 | 0 |
| Khampti | Adi | 6,640 | 120 | 10 | 50 | 6,410 | 10 | 30 |
| Khasi | Khasi | 60 | 0 | 0 | 60 | 0 | 0 | 0 |
| Rongkup-Lepcha | Lepcha | 20 | 0 | 0 | 0 | 20 | 0 | 0 |
| Idu | Assamese | 4,140 | 3,250 | 10 | 410 | 30 | 0 | 450 |
| Yakthumba, Limbu | Nepali | 20 | 20 | 0 | 0 | 0 | 0 | 0 |
| Mizo | Mizo | 80 | 0 | 0 | 80 | 0 | 0 | 0 |
| Meitei unspecified | Meitei | 330 | 330 | 0 | 0 | 0 | 0 | 0 |
| Munda | Assamese | 460 | 420 | 0 | 30 | 0 | 0 | 20 |
| Oraon | Assamese | 240 | 240 | 0 | 0 | 0 | 0 | 0 |
| Rajbansi (Hindu traditions) | Assamese | 2,860 | 2,660 | 0 | 80 | 0 | 0 | 120 |
| Santal (Sawntal) | Assamese | 370 | 320 | 0 | 20 | 0 | 0 | 30 |
| Tangsa | Naga, Tangshang | 60 | 30 | 0 | 20 | 10 | 0 | 10 |
| Adi Gallong | Hindi | 280 | 60 | 0 | 90 | 0 | 0 | 130 |
| Adi Minyong | Adi | 450 | 150 | 0 | 60 | 0 | 0 | 240 |
| Adi Padam | Adi | 730 | 160 | 0 | 140 | 0 | 0 | 430 |
| Adi Pasi | Adi | 270 | 30 | 0 | 30 | 0 | 0 | 210 |
| Yadav (Hindu traditions) | Bengali | 150 | 150 | 0 | 0 | 0 | 0 | 0 |
| Ahom | Assamese | 18,100 | 16,500 | 0 | 570 | 890 | 0 | 140 |
| Tanu | Apatani | 200 | 80 | 0 | 50 | 0 | 0 | 70 |
| Bagdi (Hindu traditions) | Bengali | 1,170 | 1,170 | 0 | 0 | 0 | 0 | 0 |
| Bania unspecified | Hindi | 1,030 | 1,010 | 0 | 0 | 0 | 0 | 30 |
| Bansphor (Hindu traditions) | Hindi | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Bhuinmali | Bengali | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Bhumij | Odia | 60 | 60 | 0 | 0 | 0 | 0 | 0 |
| Bhotia Sikkim | Sikkimese | 80 | 0 | 0 | 0 | 80 | 0 | 0 |
| Bodo (Hindu traditions) | Assamese | 2,790 | 2,550 | 0 | 210 | 30 | 0 | 0 |
| Brahmin unspecified | Bengali | 2,300 | 2,300 | 0 | 0 | 0 | 0 | 0 |
| Chamar (Hindu traditions) | Bengali | 140 | 140 | 0 | 0 | 0 | 0 | 0 |
| Chain | Bengali | 240 | 240 | 0 | 0 | 0 | 0 | 0 |
| Chhetri | Nepali | 30 | 30 | 0 | 0 | 0 | 0 | 0 |
| Deori | Adi | 1,930 | 1,920 | 0 | 0 | 0 | 0 | 0 |
| Rajaka Dhobi (Hindu traditions) | Assamese | 60 | 60 | 0 | 0 | 0 | 0 | 0 |
| Dholi (Hindu traditions) | Bengali | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Digaru | Digaro-Mishmi | 410 | 310 | 0 | 50 | 0 | 0 | 50 |
| Galong | Adi, Galo | 350 | 60 | 0 | 120 | 10 | 0 | 160 |
| Gauda | Bengali | 90 | 90 | 0 | 0 | 0 | 0 | 0 |
| Gond unspecified | Bengali | 160 | 160 | 0 | 0 | 0 | 0 | 0 |
| Halwai (Hindu traditions) | Bengali | 50 | 50 | 0 | 0 | 0 | 0 | 0 |
| Hira | Assamese | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Christian | Jingpho | 2,090 | 0 | 0 | 2,090 | 0 | 0 | 0 |
| Jhalo Malo | Bengali | 20 | 20 | 0 | 0 | 0 | 0 | 0 |
| Kaibartta unspecified | Bengali | 1,800 | 1,800 | 0 | 0 | 0 | 0 | 0 |
| Jogi (Hindu traditions) | Bengali | 490 | 490 | 0 | 0 | 0 | 0 | 0 |
| Kaora | Bengali | 90 | 90 | 0 | 0 | 0 | 0 | 0 |
| Kayastha (Hindu traditions) | Bengali | 240 | 240 | 0 | 0 | 0 | 0 | 0 |
| Kemsing Tangsa | Digaro-Mishmi | 20 | 10 | 0 | 0 | 10 | 0 | 0 |
| Khandait | Bengali | 120 | 120 | 0 | 0 | 0 | 0 | 0 |
| Kharia | Bengali | 100 | 100 | 0 | 0 | 0 | 0 | 0 |
| Khamiyang | Khamyang | 160 | 0 | 0 | 0 | 150 | 0 | 0 |
| Korku | Korku | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Kachari Sonwal | Assamese | 30 | 30 | 0 | 0 | 0 | 0 | 0 |
| Kurmi (Hindu traditions) | Bengali | 320 | 320 | 0 | 0 | 0 | 0 | 0 |
| Tiwa | Tiwa | 110 | 110 | 0 | 0 | 0 | 0 | 0 |
| Lotha | Naga, Lotha | 320 | 0 | 0 | 320 | 0 | 0 | 0 |
| Mahara | Bengali | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Mahishya | Assamese | 2,270 | 2,270 | 0 | 0 | 0 | 0 | 0 |
| Mal (Hindu traditions) | Bengali | 80 | 80 | 0 | 0 | 0 | 0 | 0 |
| Malabar Catholic | Malayalam | 20 | 0 | 0 | 20 | 0 | 0 | 0 |
| Mech | Boro (India) | 80 | 80 | 0 | 0 | 0 | 0 | 0 |
| Miji | Miju-Mishmi | 30 | 30 | 0 | 0 | 0 | 0 | 0 |
| Miri | Mising | 880 | 500 | 0 | 110 | 10 | 0 | 260 |
| Mochi (Hindu traditions) | Bengali | 40 | 40 | 0 | 0 | 0 | 0 | 0 |
| Tangsa Moglum | Assamese | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Monpa | Sartang | 50 | 0 | 0 | 0 | 50 | 0 | 0 |
| Naga | Nagamese | 50 | 20 | 0 | 30 | 0 | 0 | 0 |
| Nair | Malayalam | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Namassej (Hindu traditions) | Bengali | 30 | 30 | 0 | 0 | 0 | 0 | 0 |
| Nishang | Adi | 10 | 0 | 0 | 10 | 0 | 0 | 0 |
| Nissi | Nyishi | 80 | 30 | 0 | 30 | 0 | 0 | 20 |
| Nocte | Adi | 130 | 40 | 0 | 80 | 10 | 0 | 0 |
| Padam | Adi | 130 | 20 | 0 | 60 | 40 | 0 | 10 |
| Pan | Bengali | 180 | 180 | 0 | 0 | 0 | 0 | 0 |
| Poundra | Assamese | 1,270 | 1,270 | 0 | 0 | 0 | 0 | 0 |
| Rabha | Assamese | 650 | 650 | 0 | 0 | 0 | 0 | 0 |
| Rai | Nepali | 40 | 40 | 0 | 0 | 0 | 0 | 0 |
| Rajput (Hindu traditions) | Bengali | 140 | 140 | 0 | 0 | 0 | 0 | 0 |
| Raju | Bengali | 40 | 40 | 0 | 0 | 0 | 0 | 0 |
| Saora unspecified | Odia | 120 | 120 | 0 | 0 | 0 | 0 | 0 |
| Sayyid | Urdu | 50 | 0 | 50 | 0 | 0 | 0 | 0 |
| Shaikh unspecified | Assamese | 680 | 0 | 680 | 0 | 0 | 0 | 0 |
| Singpho | Singpho | 720 | 20 | 0 | 10 | 690 | 0 | 0 |
| Sunuwar | Nepali | 40 | 40 | 0 | 0 | 0 | 0 | 0 |
| Sunri (Hindu traditions) | Bengali | 240 | 240 | 0 | 0 | 0 | 0 | 0 |
| Sutradhar (Hindu traditions) | Bengali | 20 | 20 | 0 | 0 | 0 | 0 | 0 |
| Syrian Christian | Malayalam | 20 | 0 | 0 | 20 | 0 | 0 | 0 |
| Tagin | Tagin | 70 | 20 | 0 | 30 | 0 | 0 | 20 |
| Shan, Tai Man | Phake | 40 | 0 | 0 | 0 | 40 | 0 | 0 |
| Tanti (Hindu traditions) | Bengali | 970 | 970 | 0 | 0 | 0 | 0 | 0 |
| Teli (Hindu traditions) | Assamese | 140 | 140 | 0 | 0 | 0 | 0 | 0 |
| Tili | Bengali | 160 | 160 | 0 | 0 | 0 | 0 | 0 |
| Tutcha Nocte | Naga, Nocte | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Tangsa Tikhak | Naga, Tangshang | 20 | 0 | 0 | 0 | 20 | 0 | 0 |
| Turi (Hindu traditions) | Bengali | 120 | 120 | 0 | 0 | 0 | 0 | 0 |
| Wancho | Naga, Wancho | 100 | 10 | 0 | 90 | 0 | 0 | 0 |
| Charumba | Digaro-Mishmi | 50 | 0 | 0 | 20 | 20 | 0 | 0 |
| Adi | Adi | 3,760 | 1,490 | 0 | 530 | 10 | 0 | 1,730 |
| Miju Mishmi | Miju-Mishmi | 2,380 | 1,720 | 0 | 70 | 10 | 0 | 580 |
| Momba | Mising | 10 | 0 | 0 | 0 | 10 | 0 | 0 |
| Jat (Sikh traditions) | Punjabi, Eastern | 60 | 0 | 0 | 0 | 0 | 60 | 0 |
| Millang | Adi | 10 | 0 | 0 | 0 | 0 | 0 | 0 |
| Miniyong | Adi | 20 | 0 | 0 | 10 | 0 | 0 | 0 |
| Kui Khond | Kuvi | 80 | 80 | 0 | 0 | 0 | 0 | 0 |
| Bania Agarwal | Bengali | 210 | 200 | 0 | 0 | 0 | 0 | 20 |
| Brahmin Bengali | Bengali | 200 | 200 | 0 | 0 | 0 | 0 | 0 |
| Brahmin Gaur | Hindi | 50 | 50 | 0 | 0 | 0 | 0 | 0 |
| Bania Brittal | Assamese | 40 | 40 | 0 | 0 | 0 | 0 | 0 |
| Yadav Sadgope | Bengali | 60 | 60 | 0 | 0 | 0 | 0 | 0 |
| Abor | Adi | 30 | 0 | 0 | 10 | 0 | 0 | 20 |
| Nyishi | Nyishi | 60 | 10 | 0 | 30 | 0 | 0 | 20 |
| Valmiki (Hindu traditions) | Bengali | 80 | 80 | 0 | 0 | 0 | 0 | 0 |
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