Three state legislative seats up for special election in 2020 are still undecided as of November 20, 2020. All three are headed to runoff elections: Mississippi House of Representatives District 87 on November 24, Georgia State Senate District 39 on December 1, and Texas State Senate District 30 on December 19.
Although special state legislative elections in Mississippi are officially nonpartisan, it is the only seat that may result in a flipped seat. It was most recently held by Republican William Andrews. The Georgia race, previously held by Nikema Williams (D), is a special Democratic primary runoff that will not have a special general election. The Texas general runoff election features two Republican candidates running to replace Pat Fallon (R).
Eight state legislative seats have changed parties due to 2020 special elections: one seat flipped from Democratic to Republican, and seven seats flipped from Republican to Democratic. As of November 2020, 59 state legislative special elections have been scheduled for 2020 in 27 states. Between 2011 and 2019, an average of 77 special elections took place each year.
- Mississippi state legislative special elections, 2020
- Georgia state legislative special elections, 2020
- Texas state legislative special elections, 2020