Joe Scarnati Republican Jake Corman Republican The 2020 elections for the Pennsylvania State Senate were held on November 3, 2020, with 25 of 50 districts being contested.

[1] The term of office for those elected in 2020 began when the Senate convened in January 2021.

Republicans had controlled the chamber since the 1994 election (26 years).

A special election for the 48th senatorial district was held on January 14 following Republican State Senator Mike Folmer's resignation after being arrested for possession of child pornography.

[3] Democrats selected Lebanon Valley College associate professor Michael Schroeder as their nominee, while Republicans nominated Lebanon County District Attorney Dave Arnold.