2026 results · South Dakota · county

Buffalo County, South Dakota

Ahlers carried Buffalo County by 27.2 points in the race for governor, 0.1 points more Republican than the 2024 presidential vote here (D+27.3). 6 races have votes counted here.

Buffalo County on the national map

Votes counted, governor: 379; 81% of the 466 votes for president in 2024
2026 margin: D+27.2
2024 president: D+27.3
Shift from 2024: 0.1 pts → R
In South Dakota: 3rd of 66; The 3rd best county for Ahlers of the 66 counted; 4th for turnout against 2024.

Statewide races

South Dakota SenateMike Rounds won · Rounds +21.0 across the state
61.0% Brian L Bengs39.0% Mike Rounds
Bengs +22.0364 votes
5.3 pts → R2024 D+27.3
South Dakota GovernorLarry Rhoden won · R+27.0 across the state
63.6% Dan Ahlers36.4% Larry Rhoden
D+27.2379 votes
0.1 pts → R2024 D+27.3
South Dakota AuditorCatherine Barranco won · R+25.1 across the state
67.0% Tom Cool33.0% Catherine Barranco
D+34.1367 votes
6.8 pts → D2024 D+27.3
South Dakota Secretary of StateHeather Baxter won · R+22.3 across the state
62.6% Terrence Davis30.4% Heather Baxter
D+32.2369 votes
5.0 pts → D2024 D+27.3
South Dakota TreasurerMelissa Hull won · R+24.9 across the state
66.5% Margaret Kuipers33.5% Melissa Hull
D+33.0367 votes
5.7 pts → D2024 D+27.3

The House

South Dakota at-large DistrictBuffalo County's part of the district · Marty Jackley won · R+28.0 across the district
56.1% Nicole "Nikki" Gronli43.9% Marty Jackley
D+12.2376 votes
15.0 pts → R2024 D+27.2

Counts come from each race’s official source, named on its own page. Margins are the leading two candidates’ difference in points of all votes counted. 2024 is the presidential vote, Harris against Trump, on the same ground (for a House district, the county’s part of it). A county is not compared with 2024 until a quarter of its 2024 vote is counted. Ranks are among the state’s counties with votes counted in the same race.