The voter turnout in the Madavaram Assembly constituency, part of Thiruvallur district in Tamil Nadu, was reported at 16.88% by 9:00 AM on April 23, 2026, during the Tamil Nadu Assembly elections. This figure is slightly lower than the state-wide average of 17.69%. The constituency has 4,20,601 eligible voters, including 2,05,922 males, 2,14,596 females, and 83 individuals from the third gender. The voter turnout in Madavaram has decreased compared to previous elections, which saw 66.37% in 2021, 68.51% in 2016, and 75.25% in 2011. In the last election, Sudharsanam S from the Dravida Munnetra Kazhagam (DMK) party won the seat, defeating Moorthy V of the All India Anna Dravida Munnetra Kazhagam (AIADMK) by a margin of 57,071 votes. The constituency is part of the Thiruvallur Lok Sabha constituency and is classified as a General reservation status seat.