| Tribe | Major Districts / Concentration | Notes |
|---|---|---|
| Santhal | Banka, Jamui, Kishanganj, Araria, Madhepura | More than three-fourth of the ST population in these districts are Santhal. |
| Munda | Katihar | Highest concentration in Katihar district. |
| Oraon | Supaul | Makes up 70% of total ST population in Supaul district. |
| Kharwar | Bhagalpur | Maximum concentration in Bhagalpur district. |
| Gond | Siwan, Bhojpur, Kaimur (Bhabhua) | Highest in Siwan, followed by Bhojpur and Kaimur. |