| SL | Languages | Population | Percentage |
|---|---|---|---|
| 1 | Assamese | 969831 | 84.26 |
| 2 | Sadan/Sadri | 45419 | 3.95 |
| 3 | Bengali | 30640 | 2.66 |
| 4 | Hindi | 22363 | 1.94 |
| 5 | Miri/Mishing | 21518 | 1.87 |
| 6 | Odia | 17474 | 1.52 |
| 7 | Others | 11575 | 1.01 |
| 8 | Nepali | 9896 | 0.86 |
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| 9 | Bhojpuri | 5429 | 0.47 |
| 10 | Santali | 4167 | 0.36 |
| 11 | Kurukh/Oraon | 2546 | 0.22 |
| 12 | Manipuri | 1437 | 0.12 |
| 13 | Garo | 877 | 0.08 |
| 14 | Chhattisgarhi | 850 | 0.07 |
| 15 | Punjabi | 776 | 0.07 |
| 16 | Telugu | 683 | 0.06 |
| 17 | Munda | 623 | 0.05 |
| 18 | Marwari | 545 | 0.05 |
| 19 | Mundari | 432 | 0.04 |
| 20 | Maithili | 423 | 0.04 |
| 21 | Rajasthani | 364 | 0.03 |
| 22 | Baori | 335 | 0.03 |
| 23 | Wancho | 303 | 0.03 |
| 24 | Bodo/Boro | 267 | 0.02 |
| 25 | Kharia | 242 | 0.02 |
| 26 | Savara | 241 | 0.02 |
| 27 | Marathi | 232 | 0.02 |
| 28 | Tamil | 196 | 0.02 |
| 29 | Nocte | 157 | 0.01 |
| 30 | Malayalam | 141 | 0.01 |
| 31 | Surgujia | 137 | 0.01 |
| 32 | Urdu | 112 | 0.01 |
| 33 | Ao | 110 | 0.01 |
| 34 | Gujarati | 107 | 0.01 |
| 35 | Kannada | 88 | 0.01 |
| 36 | Arabic/Arbi | 75 | 0.01 |
| 37 | Khasi | 61 | 0.01 |
| 38 | Deori | 53 | 0.00 |
| 39 | Tamang | 47 | 0.00 |
| 40 | English | 30 | 0.00 |
| 41 | Koya | 26 | 0.00 |
| 42 | Kachari | 24 | 0.00 |
| 43 | Haryanvi | 18 | 0.00 |
| 44 | Mara | 18 | 0.00 |
| 45 | Thati | 17 | 0.00 |
| 46 | Rabha | 15 | 0.00 |
| 47 | Karbi/Mikir | 15 | 0.00 |
| 48 | Prakritha/Prakritha Bhasha | 10 | 0.00 |
| 49 | Kisan | 10 | 0.00 |
| 50 | Pahari | 8 | 0.00 |
| 51 | Maria/ Muria | 8 | 0.00 |
| 52 | Kumauni | 6 | 0.00 |
| 53 | Angami | 5 | 0.00 |
| 54 | Lushai/Mizo | 5 | 0.00 |
| 55 | Tagin | 5 | 0.00 |
| 56 | Dogri | 4 | 0.00 |
| 57 | Brajbhasha | 4 | 0.00 |
| 58 | Garhwali | 4 | 0.00 |
| 59 | War | 4 | 0.00 |
| 60 | Khortha/Khotta | 4 | 0.00 |
| 61 | Bhumij | 4 | 0.00 |
| 62 | Bundeli/Bundel khandi | 3 | 0.00 |
| 63 | Kashmiri | 3 | 0.00 |
| 64 | Kuki | 3 | 0.00 |
| 65 | Lalung | 3 | 0.00 |
| 66 | Bilaspuri Kahluri | 3 | 0.00 |
| 67 | Tibetan | 3 | 0.00 |
| 68 | Lotha | 3 | 0.00 |
| 69 | Kabui | 2 | 0.00 |
| 70 | Chakma | 2 | 0.00 |
| 71 | Konyak | 2 | 0.00 |
| 72 | Bishnupriya Manipuri/Manipuri Bishnupriya | 1 | 0.00 |
| 73 | Chakhesang | 1 | 0.00 |
| 74 | Bharmauri/Gaddi | 1 | 0.00 |
| 75 | Sanskrit | 1 | 0.00 |
| 76 | Dimasa | 1 | 0.00 |
| 77 | Mogh | 1 | 0.00 |
| 78 | Rajbangsi | 1 | 0.00 |
| Total | 1151050 | ||