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South Dakota › South Dakota House of Representatives · State legislature · November 3, 2026 · Updated Oct 16, 2026

South Dakota Legislative District 21

R vs R2 seats

Same-party general election. Two Republicans advanced to November: the seat stays Republican.

Marty Overweg has no major-party opponent.

Marty Overweg has no major-party opponent.

2 seats in this district

0.0 D · 2.0 R expected of 2 seats

0.0 D · 2.0 R expected of 2 seats

Statewide map: South Dakota House of Representatives

How this race is decided

Two representatives per district

Each of the 35 districts elects one senator and two representatives; voters pick up to two House candidates. Districts 26 and 28 are split into single-member subdistricts (A and B).

The candidates

The district

Lean R+53: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentR+54.1R+56.3 vs. nation2020 presidentR+51.0R+55.5 vs. nation2024 presidentR+54.9R+53.4 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
24,378
People per km²
2
Adults with a B.A.+
23%
White, no degree
62%of adults
  • White 77%
  • Hispanic 3%
  • Black 1%
  • Asian 1%
  • Other / multiracial 19%

American Community Survey 2020–2024, aggregated from census tracts.

Past results

Results in the same-numbered district; earlier elections may have used different lines.

2024

13,887 votes · Uncontested by the other party
✓ Marty Overweg (R)51.9%
✓ Jim Halverson (R)48.1%

2024 President Vote in this district

9,745 two-party votes · R+54.9 · R+53.4 vs. the nation
✓ Donald Trump (R)77.4%
Kamala Harris (D)22.6%

2022

11,655 votes · Uncontested by the other party
✓ Marty Overweg (R)52.8%
✓ Rocky Blare (R)47.2%

2020 Earlier district lines

14,279 votes · R+37.0
✓ Rocky Blare (R)44.3%
✓ Caleb Finck (R)35.3%
Jessica Hegge (D)20.4%

2020 President Vote in this district

12,563 two-party votes · R+51.0 · R+55.5 vs. the nation
✓ Donald Trump (R)75.5%
Joe Biden (D)24.5%

2016 President Vote in this district

11,890 two-party votes · R+54.1 · R+56.3 vs. the nation
✓ Donald Trump (R)77.0%
Hillary Clinton (D)23.0%

Also on the ballot in South Dakota

U.S. SenateBrian BengsMike Rounds93%Rep.93%Rep. GovernorDan AhlersLarry Rhoden90%Rep.92%Rep.

Neighboring districts

LD-19Heidi HoraJessica Bahmuller2 seats>99%Rep.>99%Rep. LD-20—Jeff BathkeR vs R2 seats>99%Rep.>99%Rep. LD-26AEric E. EmeryRon Frederick>99%Dem.99%Dem. LD-26BLewis J. GrassRopeAngi Hanzlik>99%Rep.99%Rep.