Jhanjharpur

The geographic coordinates of Jhanjharpur Assembly constituency are: 26°14'03.5"N 86°18'19.1"E. This constituency falls in Madhubani district of Bihar and in the Mithila region. Jhanjharpur shares its borders with five other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Jhanjharpur are: Phulparas, Rajnagar, Madhubani, Dharbhanga Rural, Alinagar. This constituency shares an inter-state border with .

There were a total of 318968 registered voters on the electoral rolls for the 2025 Assembly election in Jhanjharpur Assembly constituency, of which 167411 were male, 151552 female and 5 of the third gender. In the 2020 Assembly elections, there were a total of 317948 registered voters, of which 166525 were male, 151416 female and 7 from the third gender. In the 2015 Assembly elections, there were a total of 290624 registered voters, of which 153372 were male, 137246 female and 111 from the third gender. In 2010 elections, there were a total of 245100 registered voters in this constituency, of which 130087 were male and 115013 female and 74 from the third gender.

The number of service voters in this Assembly constituency was 272 in 2020, 6 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 905, in 2020 it was 909, 895 in 2015, and 884 in 2010.

Jhanjharpur 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 2 on Tuesday, November 3, 2020 and the results were declared on Tuesday, November 10, 2020.

In the 2015 state Assembly elections, this seat voted in Phase 5 on Thursday, November 5, 2015 and the results were declared on Sunday, November 8, 2015.

In the 2010 polls, this constituency voted in Phase 1 on Thursday, October 21, 2010 and the results were declared on Wednesday, November 24, 2010.

Assembly constituency no.38. Jhanjharpur comprises of the following areas of Madhubani district in the Mithila region of Bihar: CD Blocks Jhanjharpur & Lakhnaur; Gram Panchayats Pachahi, Parsad, Banki, Bhit Bhagwanpur, Mahasingh Hasauli & Parwalpur of Madhepur CD Block.

This constituency covers an approximate area of 314.29 square kilometers and the geographic coordinates of Jhanjharpur is: 26°14'03.5"N 86°18'19.1"E.

A total of five Assembly constituencies in the state of Bihar share borders with Jhanjharpur constituency, which are: Phulparas, Rajnagar, Madhubani, Dharbhanga Rural, Alinagar. This constituency shares an inter-state border with .

According to data released by the Election Commission of India, in the 2025 Bihar Assembly elections, the estimated voter turnout in this Jhanjharpur constituency was 59.91%. In 2020, this seat registered a turnout of 56.92%, while it was 54.35% in 2015, and 47.86% in 2010.

In the 2020 Bihar Assembly elections, Nitish Mishra of BJP won in this constituency beating Ram Narayan Yadav of CPI by a margin of 41788 votes which was 23.12% of the total votes cast. In 2015, Gulab Yadav of RJD was the winner in this seat beating Nitish Mishra of BJP by a margin of 834 votes which was 0.53% of the total votes polled in the constituency. In the 2010 Assembly elections, Nitish Mishra of JDU won this seat defeating Jagat Narayan Singh of RJD by a margin of 20681 votes which was 17.63% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Nitish Mishra of BJP had a vote share of 52.47% in this seat. In the 2015 Assembly elections, Gulab Yadav of RJD got a vote share of 40.73% , In the 2010 Assembly elections, Nitish Mishra of JDU got a vote share of 49.15% in Jhanjharpur.