Kansas State Senate seat · lines in effect since 2022
Kansas Senate District 23
A district of about 69,000 people, 47% of adults with a bachelor's degree. It votes R+2.3 relative to the nation for president.
2024 election
Nov 5, 2024- Adam Thomas (R) · won52.4%
- Stacey B. Knoell (D)47.6%
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
Where it sits among all 40 seats
Every Kansas 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. 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 Thomas (R) | Stacey B. Knoell (D) | 4.8 |
| Lines first used in 2012 | |||
| 2020 | Rob Olson (R) | Wendy Budetti (D) | 6.2 |
| 2016 | Rob Olson (R) | Spencer Kerfoot (D) | 21.1 |
| 2012 | Rob Olson (R) | Steve Wright (D) | 25.9 |
| Lines first used in 2002 | |||
| 2008 | Karin S. Brownlee (R) | Bill Jackson (D) | 33.4 |
| 2004 | Karin S. Brownlee (R) | — | Unopposed |
| Lines first used in 1992 | |||
| 2000 | Karin S. Brownlee (R) | Glenn Q. Pierce (D) | 46.1 |
| 1996 | Karin S. Brownlee (R) | Brad Russell (D) | 39.2 |
| 1992 | Mark V. Parkinson (R) | — | Unopposed |
| Lines first used in 1982 | |||
| 1988 | Ross O. Doyen (R) | Michael G. Johnson (D) | 7.8 |
| 1984 | Ross O. Doyen (R) | Ken E. Campbell (D) | 11.1 |
| Lines first used in 1972 | |||
| 1980 | Ross O. Doyen (R) | Leon D. Riffel (D) | 41.4 |
| 1976 | Ross O. Doyen (R) | Frank L. Lombard (D) | 22.0 |
| 1972 | Ross O. Doyen (R) | Frank E. Roth (D) | 21.8 |
| Lines first used in 1962 | |||
| 1968 | Jack W. Janssen (D) | Rex Duwe (R) | 3.0 |
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.
- U.S. House
- KS-3 100%
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2016 | 2018 | 2020 | |
|---|---|---|---|
| President | R+14.6 | No race | R+37.4 |
| U.S. Senate | R+23.4 | No race | R+33.2 |
| Governor | No race | R+14.2 | No race |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 PM ET
Who lives here, compared
Grey bars show the spread of all 40 seats. Small marks are other seats in Kansas. The black marker is District 23.
Higher than 77% of seats.
Lower than 64% of seats.
Higher than 72% of seats.
Higher than 62% of seats.
Higher than 82% of seats.
Denser than 67% 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.
District 2249% college gradsD+2.5Not up in 2026District 10
57% college gradsD+2.1Not up in 2026District 16
50% college gradsR+22.1Not up in 2026District 9
44% college gradsR+14.0Not up in 2026
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