2020 general · November 3, 2020
2020 Missouri State Senate election results, district by district
Every Missouri State Senate district in the 2020 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Republicans controlled the chamber · 34 seats
After the electionD 10 · R 24
Races17
Changed party1
Unopposed24%4 races
Incumbents defeated0
Every district
D 7 · R 10
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-1 | Doug Beck (D) | 10.9 | |
| SD-3 | Elaine Freeman Gannon (R) | Unopposed | |
| SD-5 | Steve Roberts (D) | 74.2 | |
| SD-7 | Greg Razer (D) | 64.2 | |
| SD-9 | Barbara Washington (D) | 64.7 | |
| SD-11 | John Joseph Rizzo (D) | Unopposed | |
| SD-13 | Angela Mosley (D) | 75.1 | |
| SD-15 | Andrew Koenig (R) | 8.0 | |
| SD-17 | Lauren Arthur (D) | 6.8 | Flipped |
| SD-19 | Caleb Rowden (R) | 3.3 | |
| SD-21 | Denny Hoskins (R) | 59.6 | |
| SD-23 | Bill Eigel (R) | 14.5 | |
| SD-25 | Jason Bean (R) | Unopposed | |
| SD-27 | Holly Rehder (R) | 53.8 | |
| SD-29 | Mike Moon (R) | Unopposed | |
| SD-31 | Rick Brattin (R) | 42.8 | |
| SD-33 | Karla Eslinger (R) | 67.6 |
Missouri State Senate
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: MIT Election Data and Science Lab