Oklahoma State Senate seat · lines in effect since 2022

Oklahoma Senate District 31

A district of about 97,000 people, 21% of adults with a bachelor's degree. It votes R+51.9 relative to the nation for president.

Spencer Kern (R)Next election Nov 7, 2028

2020 election

Nov 3, 2020
  1. Chris Kidd (R) · won · incumbent

Unopposed.

Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET

Where it sits among all 35 seats

Every Oklahoma 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+51.916th most
Democratic
Most DemocraticMost Republican18th seat · the majority lineDistrict 31

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

14 races since 1968. District numbers are redrawn after each census: each group is one set of lines.

YearWinnerRunner-upWon by
Lines first used in 2012
2020Chris Kidd (R)—Unopposed
2016Chris Kidd (R)Perry Brinegar (D)39.5
2012Don Barrington (R)Tony Terrill (D)35.6
Lines first used in 2002
2008Don Barrington (R)Keith Erwin (D)12.6
2004Don Barrington (R)Craig Hale (D)6.9
Lines first used in 1992
2000Sam Helton (D)Steve Fair (R)27.6
1996Sam Helton (D)—Unopposed
1992Sam Helton (D)—Unopposed
Lines first used in 1982
1988Paul Taliaferro (D)—Unopposed
1984Paul Taliaferro (D)—Unopposed
Lines first used in 1972
1980Paul Taliaferro (D)—Unopposed
1976Paul Taliaferro (D)—Unopposed
1972Jim Taliaferro (D)—Unopposed
Lines first used in 1962
1968Jim Taliaferro (D)—Unopposed

Primaries: 1988 Democratic primary · 1984 Democratic primary · 1976 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 31

The state's districts in other chambers that share residents with this one, and the share of District 31's area in each.

U.S. House
OK-4 100%
Oklahoma House of Representatives
HD-50 41%, HD-63 29%, HD-49 17%, HD-51 6%

Every race on these lines

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

20202024
PresidentR+49.9R+51.3
U.S. SenateR+50.4No 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 35 seats. Small marks are other seats in Oklahoma. The black marker is District 31.

Adults with a bachelor's degree21% 35th pct · 23rd of 35 in OK

Lower than 65% of seats.

White adults without a degree55% 56th pct · 16th of 35 in OK

Higher than 56% of seats.

Hispanic residents11% 65th pct · 13th of 35 in OK

Higher than 65% of seats.

Black residents8% 91st pct · 4th of 35 in OK

Higher than 91% of seats.

Asian residents1% 65th pct · 13th of 35 in OK

Higher than 65% of seats.

People per square mile31 26th pct · 26th of 35 in OK

Less dense than 74% of seats.

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