How Many Senate Seats Up For Election In 2024. All 435 seats in the house of representatives and 34 seats in the senate are up for grabs. Congress (33 senate seats and all 435 house seats) are up for election on november 5, 2024.

Ahead of the elections, republicans hold a majority in the u.s. How many senate seats republicans pick up could be critical to how long democrats are in the minority — and if they have a shot at winning back.