Missouri State Senate seat · lines in effect since 2022

Missouri Senate District 21

A district of about 190,000 people, 29% of adults with a bachelor's degree. It votes R+36.2 relative to the nation for president.

2024 election

Nov 5, 2024
  1. Kurtis Gregory (R) · won69.3%
  2. Jim Bates (D)30.7%

Full results →

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.

R+36.219th most
Democratic
Most DemocraticMost Republican18th seat · the majority lineDistrict 21

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.

YearWinnerRunner-upWon by
Lines first used in 2022
2024Kurtis Gregory (R)Jim Bates (D)38.6
Lines first used in 2012
2020Denny Hoskins (R)Mark Bliss (I)59.6
2016Denny Hoskins (R)ElGene Ver Dught (D)40.8
2012David Pearce (R)ElGene Ver Dught (D)34.9
Lines first used in 2002
2008Bill Stouffer (R)Joe Sadeghi (D)27.9
2004Bill Stouffer (R)Page Bellamy (D)4.1
Lines first used in 1992
2000James Mathewson (D)—Unopposed
1996James Mathewson (D)Dave Oetting (R)10.3
1992James Mathewson (D)Floyd F. Self (R)21.6
Lines first used in 1982
1988James Mathewson (D)—Unopposed
1984James Mathewson (D)Virginia Rose Moore (R)26.9
Lines first used in 1972
1980James Mathewson (D)FlipDon Shackelford (R)11.6
1976John C. Ryan (R)—Unopposed
1972John C. Ryan (R)—Unopposed
Lines first used in 1962
1968Omer H. Avery (D)Buell Baclesse (R)3.6

Primaries: 1980 Republican primary · 1980 Democratic primary · 1972 Republican 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 21

The state's districts in other chambers that share residents with this one, and the share of District 21's area in each.

Missouri House of Representatives
HD-51 35%, HD-48 31%, HD-53 17%, HD-7 8%

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

2018
U.S. SenateR+29.2

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 34 seats. Small marks are other seats in Missouri. The black marker is District 21.

Adults with a bachelor's degree29% 55th pct · 16th of 34 in MO

Higher than 55% of seats.

White adults without a degree63% 58th pct · 15th of 34 in MO

Higher than 58% of seats.

Hispanic residents5% 55th pct · 16th of 34 in MO

Higher than 55% of seats.

Black residents3% 30th pct · 24th of 34 in MO

Lower than 70% of seats.

Asian residents1% 15th pct · 29th of 34 in MO

Lower than 85% of seats.

People per square mile57 21st pct · 27th of 34 in MO

Less dense than 79% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET