Gopalganj

The geographic coordinates of Gopalganj Assembly constituency are: 26°29'21.1"N 84°24'53.3"E. This constituency falls in Gopalganj district of Bihar and in the Bhojpur region. Gopalganj shares its borders with six other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Gopalganj are: Kuchaikote, Hathua, Siwan, Barauli, Govindganj, Nothan. This constituency shares an inter-state border with .

There were a total of 295261 registered voters on the electoral rolls for the 2025 Assembly election in Gopalganj Assembly constituency, of which 156691 were male, 138564 female and 6 of the third gender. In the 2020 Assembly elections, there were a total of 325040 registered voters, of which 163892 were male, 161140 female and 8 from the third gender. In the 2015 Assembly elections, there were a total of 298694 registered voters, of which 152834 were male, 145850 female and 209 from the third gender. In 2010 elections, there were a total of 241481 registered voters in this constituency, of which 131582 were male and 109899 female and 109 from the third gender.

The number of service voters in this Assembly constituency was 427 in 2020, 10 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 884, in 2020 it was 983, 954 in 2015, and 835 in 2010.

Gopalganj Assembly constituency will go to the polls in Phase 1 of the 2025 Bihar Assembly elections on Thursday, November 6, 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 4 on Sunday, November 1, 2015 and the results were declared on Sunday, November 8, 2015.

In the 2010 polls, this constituency voted in Phase 3 on Thursday, October 28, 2010 and the results were declared on Wednesday, November 24, 2010.

Assembly constituency no.101. Gopalganj comprises of the following areas of Gopalganj district in the Bhojpur region of Bihar: CD Blocks Thawe & Gopalganj; Gram Panchayats Bairia Durg, Uchakagaon, Chhotka Sankhe, Harpur, Sakhekhas, Parsauni Khas, Nawadaparsoni, Luhsi, Jhirwa & Dahibhata of Uchkagaon CD Block.

This constituency covers an approximate area of 322.54 square kilometers and the geographic coordinates of Gopalganj is: 26°29'21.1"N 84°24'53.3"E.

A total of six Assembly constituencies in the state of Bihar share borders with Gopalganj constituency, which are: Kuchaikote, Hathua, Siwan, Barauli, Govindganj, Nothan. 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 Gopalganj constituency was 66.1%. In 2020, this seat registered a turnout of 55.03%, while it was 57.79% in 2015, and 52.8% in 2010.

In the 2020 Bihar Assembly elections, Subash Singh of BJP won in this constituency beating Anirudh Prasad Alias Sadhu Yadav of BSP by a margin of 36752 votes which was 20.55% of the total votes cast. In 2015, Subash Singh of BJP was the winner in this seat beating Reyajul Haque Alias " Raju" of RJD by a margin of 5074 votes which was 2.94% of the total votes polled in the constituency. In the 2010 Assembly elections, Subas Singh of BJP won this seat defeating Reyazul Haque Alias "Raju" of RJD by a margin of 15893 votes which was 12.48% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Subash Singh of BJP had a vote share of 43.49% in this seat. In the 2015 Assembly elections, Subash Singh of BJP got a vote share of 45.49% , In the 2010 Assembly elections, Subas Singh of BJP got a vote share of 45.55% in Gopalganj.