Missouri State Senate seat · lines in effect since 2022
Missouri Senate District 23
A district of about 174,000 people, 41% of adults with a bachelor's degree. It votes R+7.3 relative to the nation for president.
2024 election
Nov 5, 2024- Adam Schnelting (R) · won55.1%
- Matt Williams (D)44.9%
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
Where it sits among all 34 seats
Every Missouri State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every election for this seat
15 races since 1968; the seat changed party 1 time. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2022 | |||
| 2024 | Adam Schnelting (R) | Matt Williams (D) | 10.2 |
| Lines first used in 2012 | |||
| 2020 | Bill Eigel (R) | Richard Orr (D) | 14.5 |
| 2016 | Bill Eigel (R) | Richard Orr (D) | 23.5 |
| 2012 | Tom Dempsey (R) | — | Unopposed |
| Lines first used in 2002 | |||
| 2008 | Tom Dempsey (R) | Larry Willis (D) | 20.4 |
| 2004 | Charles Gross (R) | Mindy Primm (D) | 15.9 |
| Lines first used in 1992 | |||
| 2000 | Charles Gross (R) | Don R. Kissell (D) | 8.5 |
| 1996 | Steven E. Ehlmann (R) | George E. Hahn Jr. (D) | 28.4 |
| 1992 | Steven E. Ehlmann (R) | Rita M. Voorheis (D) | 12.9 |
| Lines first used in 1982 | |||
| 1988 | Jeff W. Schaeperkoetter (D)Flip | Bill D. Miller (R) | 14.8 |
| 1984 | Ralph Uthlaut (R) | H. Hoff (D) | 28.7 |
| Lines first used in 1972 | |||
| 1980 | Ralph Uthlaut (R) | Thurman L. Willett (D) | 17.9 |
| 1976 | Ralph Uthlaut (R) | Anthony Heisberger (D) | 9.6 |
| 1972 | Ralph Uthlaut (R) | Ken V. Wildhaber (D) | 10.6 |
| Lines first used in 1962 | |||
| 1968 | Nelson Tinnin (D) | — | Unopposed |
Primaries: 1984 Democratic primary · 1972 Republican primary · 1972 Democratic primary · 1968 Democratic primary
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 23
The state's districts in other chambers that share residents with this one, and the share of District 23's area in each.
Who lives here, compared
Grey bars show the spread of all 34 seats. Small marks are other seats in Missouri. The black marker is District 23.
Higher than 76% of seats.
Lower than 58% of seats.
Higher than 58% of seats.
Higher than 58% of seats.
Higher than 73% of seats.
Denser than 61% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean. 2 of the 4 flipped this year.
District 843% college gradsR+5.9Flipped DDistrict 2
46% college gradsR+23.8Held RDistrict 34
37% college gradsR+10.4CountingDistrict 30
31% college gradsR+3.2Flipped D
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET