| Region | District | HIV positivity (%) in 2007 | HIV positivity (%) in 2012 | % relative change in HIV positivity at district level | Category of district* | % relative change in HIV positivity at regional level |
| East | Tinsukia | 0.0 | 0.86 | 86.0 | 1 | 2.30 |
| Jorhat | 0.5 | 0.94 | 88.0 | 1 | ||
| Morigaon | 0.09 | 0.12 | 33.3 | 2 | ||
| Golaghat | 0.91 | 0.58 | −36.3 | 3 | ||
| Sibsagar | 0.31 | 0.28 | −9.7 | 3 | ||
| Dibrugarh | 1.78 | 1.1 | −38.2 | 3 | ||
| Nagaon | 0.77 | 1.6 | 107.8 | 1 | ||
| West | Goalpara | 0.19 | 0.33 | 73.7 | 1 | −51.5 |
| Kamrup | 0.0 | 0.11 | 11.0 | 2 | ||
| Baksa | 0.0 | 0.08 | 8.0 | 2 | ||
| Kokrajhar | 0.38 | 0.41 | 7.9 | 2 | ||
| Barpeta | 0.26 | 0.27 | 3.8 | 2 | ||
| Chirang | 0.0 | 0.0 | 0.0 | 3 | ||
| Nalbari | 0.38 | 0.02 | −94.7 | 3 | ||
| Kamrup(M) | 4.68 | 2.67 | −42.9 | 3 | ||
| Bongaigaon | 1.07 | 0.52 | −51.4 | 3 | ||
| Dhubri | 0.44 | 0.37 | −15.9 | 3 | ||
| North | Dhemaji | 0.09 | 0.27 | 200.0 | 1 | 46.88 |
| Darrang | 0.19 | 0.62 | 226.3 | 1 | ||
| Sonitpur | 0.65 | 0.73 | 12.3 | 2 | ||
| Udalguri | 0.0 | 0.0 | 0.0 | 3 | ||
| Lakhimpur | 0.42 | 0.07 | −83.3 | 3 | ||
| South | Dima-Hasao | 0.08 | 0.85 | 962.5 | 1 | 11.48 |
| Karbi-Anglong | 0.2 | 1.09 | 445.0 | 1 | ||
| Karimganj | 1.12 | 1.25 | 11.6 | 2 | ||
| Hailakandi | 0.14 | 0.06 | −57.1 | 3 | ||
| Cachar | 8.06 | 3.46 | −57.1 | 3 |