Jamui

Demographic profile

There were a total of 310931 registered voters on the electoral rolls for the 2025 Assembly election in Jamui Assembly constituency, of which 162527 were male, 148402 female and 2 of the third gender. In the 2020 Assembly elections, there were a total of 295169 registered voters, of which 156815 were male, 138343 female and 11 from the third gender. In the 2015 Assembly elections, there were a total of 279092 registered voters, of which 150347 were male, 128738 female and 64 from the third gender. In 2010 elections, there were a total of 227636 registered voters in this constituency, of which 123708 were male and 103928 female and 30 from the third gender.

The number of service voters in this Assembly constituency was 519 in 2020, 7 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 913, in 2020 it was 882, 856 in 2015, and 840 in 2010.

Poll dates

Jamui Assembly constituency will go to the polls in Phase 2 of the 2025 Bihar Assembly elections on Tuesday, November 11, 2025. The counting of votes is on Friday, November 14, 2025.

In the 2020 state Assembly elections, this seat voted in Phase 1 on Wednesday, October 28, 2020 and the results were declared on Tuesday, November 10, 2020.

In the 2015 state Assembly elections, this seat voted in Phase 1 on Monday, October 12, 2015 and the results were declared on Sunday, November 8, 2015.

In the 2010 polls, this constituency voted in Phase 4 on Monday, November 1, 2010 and the results were declared on Wednesday, November 24, 2010.

Extent

Assembly constituency no.241. Jamui comprises of the following areas of Jamui district in the Bhagalpur region of Bihar: CD Blocks Jamui & Barhat; Gram Panchayats Mangobandar, Banpur, Jhundo, Khandaich, Jitjhingoi, Dabil, Bela, Kageshwar, Kendih & Chuan of Khaira CD Block.

This constituency covers an approximate area of 481.59 square kilometers and the geographic coordinates of Jamui is: 24°57'46.8"N 86°15'36.7"E.

A total of seven Assembly constituencies in the state of Bihar share borders with Jamui constituency, which are: Lakhisarai, Suryagarha, Jamalpur, Tarapur, Jhajha, Chakai, Gobindpur. This constituency shares an inter-state border with Jharkhand.

Voter turnout

According to data released by the Election Commission of India, in the 2025 Bihar Assembly elections, the estimated voter turnout in this Jamui constituency was 69.51%. In 2020, this seat registered a turnout of 61.47%, while it was 56.5% in 2015, and 53.5% in 2010.

Total voters

Victory margin

In the 2020 Bihar Assembly elections, Shreyasi Singh of BJP won in this constituency beating Vijay Prakash of RJD by a margin of 41049 votes which was 22.63% of the total votes cast. In 2015, Vijay Prakash of RJD was the winner in this seat beating Ajoy Pratap of BJP by a margin of 8249 votes which was 5.23% of the total votes polled in the constituency. In the 2010 Assembly elections, Ajay Pratap of JDU won this seat defeating Vijay Prakash of RJD by a margin of 24467 votes which was 20.09% of the total votes polled for the seat.

Winner vote share (%)

In the 2020 Bihar Assembly elections, Shreyasi Singh of BJP had a vote share of 43.89% in this seat. In the 2015 Assembly elections, Vijay Prakash of RJD got a vote share of 42.24% , In the 2010 Assembly elections, Ajay Pratap of JDU got a vote share of 49.37% in Jamui.