| State ▲ | District | Primary Language | Population | Hindu | Muslim | Buddhist | Christian | Sikh | Other |
|---|---|---|---|---|---|---|---|---|---|
| Arunachal Pradesh | Changlang | Apatani | 300 | 50 | -1 - | -1 - | 100 | -1 - | 100 |
| Arunachal Pradesh | Dibang Valley | Apatani | -1 Unknown | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Kameng, East | Apatani | 200 | 30 | -1 - | -1 - | 40 | -1 - | 100 |
| Arunachal Pradesh | Kameng, West | Apatani | 400 | 80 | -1 - | 20 | 100 | -1 - | 200 |
| Arunachal Pradesh | Kra Daadi | Apatani | 20 | -1 - | -1 - | -1 - | -1 - | -1 - | 20 |
| Arunachal Pradesh | Kurung Kumey | Apatani | 20 | -1 - | -1 - | -1 - | -1 - | -1 - | 20 |
| Arunachal Pradesh | Lepa-Rada | Apatani | 30 | -1 - | -1 - | -1 - | -1 - | -1 - | 20 |
| Arunachal Pradesh | Lohit | Apatani | 200 | 80 | -1 - | -1 - | 40 | -1 - | 30 |
| Arunachal Pradesh | Longding | Apatani | 60 | -1 - | -1 - | -1 - | 40 | -1 - | -1 - |
| Arunachal Pradesh | Lower Dibang Valley | Apatani | 200 | 50 | -1 - | -1 - | 80 | -1 - | 100 |
| Arunachal Pradesh | Lower Siang | Apatani | 30 | -1 - | -1 - | -1 - | -1 - | -1 - | 20 |
| Arunachal Pradesh | Lower Subansiri | Apatani | 35,000 | 600 | 60 | 20 | 7,000 | -1 - | 28,000 |
| Arunachal Pradesh | Namsai | Apatani | 200 | 90 | -1 - | -1 - | 50 | -1 - | 70 |
| Arunachal Pradesh | Pakke-Kessang | Apatani | 40 | -1 - | -1 - | -1 - | -1 - | -1 - | -1 - |
| Arunachal Pradesh | Papum Pare | Apatani | 8,100 | 1,500 | 50 | 20 | 2,300 | -1 - | 4,100 |
| Arunachal Pradesh | Siang, East | Apatani | 200 | 20 | -1 - | -1 - | 40 | -1 - | 100 |
| Arunachal Pradesh | Siang, West | Apatani | 200 | -1 - | -1 - | -1 - | 50 | -1 - | 100 |
| Arunachal Pradesh | Tawang | Apatani | 100 | -1 - | -1 - | -1 - | -1 - | -1 - | 70 |
| Arunachal Pradesh | Tirap | Nyishi | 100 | 40 | -1 - | -1 - | 30 | -1 - | 70 |
| Arunachal Pradesh | Upper Siang | Apatani | 100 | -1 - | -1 - | -1 - | 50 | -1 - | 60 |
| Arunachal Pradesh | Upper Subansiri | Apatani | 200 | 60 | -1 - | -1 - | 20 | -1 - | 100 |
| Assam | Dhemaji | Apatani | 20 | 20 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Assam | Lakhimpur | Apatani | 50 | 50 | -1 - | -1 - | -1 - | -1 - | -1 - |
| Mizoram | Aizawl | Apatani | 50 | 40 | -1 - | -1 - | -1 - | -1 - | -1 - |
| 3 | 24 | 2 | 46,000 | 2,800 | 100 | 70 | 10,000 | 10 | 33,000 |