| SL | Languages | Population | Percentage |
|---|---|---|---|
| 1 | Assamese | 699107 | 73.02 |
| 2 | Bengali | 212488 | 22.19 |
| 3 | Hindi | 13480 | 1.41 |
| 4 | Bodo/Boro | 11574 | 1.21 |
| 5 | Lalung | 7941 | 0.83 |
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| 6 | Bhojpuri | 3663 | 0.38 |
| 7 | Nepali | 2622 | 0.27 |
| 8 | Karbi/Mikir | 2539 | 0.27 |
| 9 | Others | 1917 | 0.20 |
| 10 | Sadan/Sadri | 632 | 0.07 |
| 11 | Odia | 278 | 0.03 |
| 12 | Santali | 260 | 0.03 |
| 13 | Punjabi | 102 | 0.01 |
| 14 | Urdu | 102 | 0.01 |
| 15 | Telugu | 87 | 0.01 |
| 16 | Baori | 86 | 0.01 |
| 17 | Manipuri | 76 | 0.01 |
| 18 | Marathi | 63 | 0.01 |
| 19 | Ao | 62 | 0.01 |
| 20 | Marwari | 50 | 0.01 |
| 21 | Malayalam | 34 | 0.00 |
| 22 | Rajasthani | 31 | 0.00 |
| 23 | English | 23 | 0.00 |
| 24 | Kachari | 22 | 0.00 |
| 25 | Tamil | 22 | 0.00 |
| 26 | Lushai/Mizo | 19 | 0.00 |
| 27 | Arabic/Arbi | 17 | 0.00 |
| 28 | Maithili | 16 | 0.00 |
| 29 | Dimasa | 14 | 0.00 |
| 30 | Rabha | 14 | 0.00 |
| 31 | Dogri | 10 | 0.00 |
| 32 | Gujarati | 9 | 0.00 |
| 33 | Deori | 9 | 0.00 |
| 34 | Bishnupriya Manipuri/Manipuri Bishnupriya | 9 | 0.00 |
| 35 | Bhateali | 7 | 0.00 |
| 36 | Chhattisgarhi | 6 | 0.00 |
| 37 | Khasi | 5 | 0.00 |
| 38 | Koch | 5 | 0.00 |
| 39 | Kannada | 3 | 0.00 |
| 40 | Garo | 3 | 0.00 |
| 41 | Chakma | 2 | 0.00 |
| 42 | Kashmiri | 2 | 0.00 |
| 43 | Bhatia | 2 | 0.00 |
| 44 | Miri/Mishing | 2 | 0.00 |
| 45 | Kokbarak | 2 | 0.00 |
| 46 | Haijong/Hajong | 2 | 0.00 |
| 47 | Dhundhari | 1 | 0.00 |
| 48 | Konkani | 1 | 0.00 |
| 49 | Kurukh/Oraon | 1 | 0.00 |
| 50 | Kuki | 1 | 0.00 |
| Total | 957423 | ||