2020 Texas Senate election
The 2020 Texas Senate elections took place as part of the biennial United States elections. Texas voters elected state senators in 16 of the 31 state senate districts. The winners of this election served in the 87th Texas Legislature. State senators serve four-year terms in the Texas State Senate. Those elected in 2020 will only be elected for two years, however, as part of the 2-4-4 term system. A statewide map of Texas's state Senate districts can be obtained from the Texas Legislative Council. and individual district maps can be obtained from the U.S. Census.
Following the 2018 state senate elections, Republicans maintained effective control of the Senate with 19 members. To claim control of the chamber from Republicans, the Democrats would have needed to net four Senate seats.
The Democratic Party gained one seat, leaving the Republicans with an 18 to 13 majority in the chamber. This broke Republican's effective supermajority in the chamber, as legislation typically requires 19 votes, three fifths, to pass the chamber. At the urging of lieutenant governor Dan Patrick, the senate voted to reduce this threshold to 18, just as he had done to reduce the threshold from 21 to 19 during the 2015 session.
Retirements
One incumbent did not run for re-election in 2020:Democrats
- District 29: José R. Rodríguez: Retiring
Incumbents defeated
In the general election
Republicans
- District 19: Pete Flores lost to Roland Gutierrez.
Predictions
Despite the state's competitive elections for President and House of Representatives, analysts considered the Texas Senate extremely unlikely to flip control due to the small number of competitive seats up for election in 2020.| Source | Ranking | As of |
| The Cook Political Report | October 21, 2020 | |
| Sabato's Crystal Ball | May 7, 2020 |
Close races
| District | Winner | Margin |
| District 19 | Democratic | 3.29% |