Administrative divisions of Bihar | Polity of Bihar Notes

State of Bihar is divided into 9 divisions which consist of 38 districts. 

Patna

• Headquarters: Patna
• Number of Districts  : 6
• Names of Districts : Patna, Nalanda, Bhojpur, Rohtas, Buxar and Kaimur.
• Population (As per 2011 Census) : 17,662,619

Tirhut

• Headquarters: Muzaffarpur
• Number of Districts  : 6
• Names of Districts : West Champaran, East Champaran, Muzaffarpur, Sitamarhi, Sheoharand Vaishali.
• Population (As per 2011 Census) : 21,356,045

Saran

• Headquarters: Chhapra
• Number of Districts  : 3
• Names of Districts : Saran, Siwan And Gopalganj.
• Population (As per 2011 Census) : 9,819,311

Darbhanga

• Headquarters: Darbhanga
• Number of Districts  : 3
• Names of Districts : Darbhanga, Madhubani[1]and Samastipur.
• Population (As per 2011 Census) : 12,652,797

Kosi

• Headquarters: Saharsa
• Number of Districts  : 3
• Names of Districts : Saharsa, Madhepura And Supaul.
• Population (As per 2011 Census) : 6,120,117

Purnia

• Headquarters: Purnia
• Number of Districts  : 4
• Names of Districts : Purnia, Katihar, Araria and Kishanganj.
• Population (As per 2011 Census) : 10,838,424

Bhagalpur

• Headquarters: Bhagalpur
• Number of Districts  : 2
• Names of Districts : Bhagalpurand Banka
• Population (As per 2011 Census) : 5,061,565

Munger

• Headquarters: Munger
• Number of Districts  : 6
• Names of Districts : Munger, Jamui, Khagaria, Lakhisarai, Begusarai And Sheikhpura.
• Population (As per 2011 Census) : 9,362,742

 Magadh

• Headquarters: Gaya
• Number of Districts  : 5
• Names of Districts : Gaya, Nawada, Aurangabad, Jehanabad And Arwal
• Population (As per 2011 Census) : 10,931,018