As per Census 2011, the least populous district of Bihar is

Sheikhpura
Madhubani
Saran
Gaya

As per Census 2011, the least populous district of Bihar is Sheikhpura. It has a population of 1,088,803. The other options are:

  • Madhubani: 2,985,665
  • Saran: 3,941,239
  • Gaya: 4,988,859

Sheikhpura is a district in the Indian state of Bihar. It is located in the Patna division and is one of the 38 districts of Bihar. The district headquarters is located at Sheikhpura town. The district has a population of 1,088,803 as per the 2011 census. The district is divided into 10 blocks and 149 panchayats. The main languages spoken in the district are Hindi, Urdu, and Maithili. The main occupation of the people in the district is agriculture. The district is also home to a number of industries, including sugar mills, rice mills, and brick kilns.