CalledUnofficial results
South Dakota Legislative District 21
South Dakota House of Representatives · South Dakota
Jim Halverson and Marty Overweg won the district's 2 seats.
Two representatives per district
Jim HalversonRepublican · winner · incumbent
52.7%5,529
Marty OverwegRepublican · winner · incumbent
47.3%4,954
Jim Halverson won without an opponent on the ballot.10,483 votes
Source: South Dakota Secretary of State unofficial resultsUpdated Nov 7, 2026, 1:22 PM ET
Money in this race
Each line compares the two campaigns on one scale.
No DemocratJim Halverson
—
Raised by the campaign
$24.6K
—
Spent by the campaign
$20K
—
Cash on hand
$10.8K
Other candidates' campaigns: Marty Overweg $12.3K.
Campaign money: South Dakota Secretary of State, through Oct 20, 2026.
Source: South Dakota Secretary of State campaign filingsUpdated Oct 20, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
No Democrat was on the ballot, so the model gave the seat to Marty Overweg without simulating it.
How the forecast works →