Senate · South Dakota
Mike Rounds (R)
I
Brian Bengs
IND
R
Mike RoundsINC
REP · U.S. Senator since 2015
Recent polling available · Last poll:
Logged poll: Emerson College Polling, October 21, 2026: I 42 · R 50 · Sabato: Safe R
South Dakota 2026 elections
South Dakota votes for U.S. Senate and governor on November 3, 2026, along with its U.S. House seats.
Dataset · Date only; publication time not recorded. Update policy
Editorial coverage below includes tracked Senate and governor races. House, state and local ballot coverage is not complete.
2026 results in South Dakota · unofficial
South Dakota Senate
✓ Winner: Mike Rounds (R)Updated Nov 12, 12:19 PM ET
Mike Rounds Republican ✓60.5%
Brian Bengs Independent39.5%
Mike Rounds won by 21.0 points · called by Fox News at Nov 3, 11:14 PM ET
Lead at Nov 3, 9:19 PM ET: R +33.8 (3% counted) → now R +21.0
Unofficial results. Vote shares and calls from the Fox News Decision Desk results page ↗; this site does not project winners. Certified results come from the state election office.
South Dakota Governor
✓ Winner: Larry Rhoden (R)Updated Nov 12, 12:19 PM ET
Larry Rhoden Republican ✓63.5%
Dan Ahlers Democrat36.5%
Larry Rhoden won by 27.0 points · called by Fox News at Nov 3, 11:14 PM ET
Lead at Nov 3, 9:19 PM ET: D +18.2 (3% counted) → now R +27.0
Unofficial results. Vote shares and calls from the Fox News Decision Desk results page ↗; this site does not project winners. Certified results come from the state election office.
U.S. House (1 seat): 0 D · 1 R
| District | Winner / leader | Vote % | Counted | Status |
|---|---|---|---|---|
| SD-1 | Marty Jackley R · vs Nicole Gronli (D) | 64.0–36.0R +28.0 | 99% | ✓ Called |
Senate and governor calls: Fox News Decision Desk. House calls: The Associated Press, as shown by Fox News. Updated Nov 12, 12:19 PM ET. All 435 House districts →
Tracked Senate and governor races
Solid R
Governor · South Dakota
Larry Rhoden (R)
D
Dan Ahlers
DEM · Former state senator
R
Larry RhodenINC
REP · Governor since 2025
Recent polling available · Last poll:
Logged poll: Emerson College Polling, October 21, 2026: D 38 · R 56 · Sabato: Safe R
Official government resources · separate from our coverage
Voting in South Dakota
Election Day: . Confirm your registration, deadlines, voting options, polling location and sample ballot with official sources.
Register / check registration ↗Official South Dakota registration information.State / local election authority ↗Official source for election procedures and updates.
Verified deadlines
- Absentee voting (by mail or in person at county auditor): · mail or in person through November 2, 2026 · Official source ↗
- Voter registration deadline: · must be received by this date · Official source ↗By 5 p.m. local time.
- Absentee ballot request deadline: (closes) · Official source ↗Before 5 p.m. local time.
Not verified in this guide: Absentee ballot return deadline.
Sources checked 2026-10-07. Election rules and deadlines can change; confirm details with the authority.
Registration deadlines and early voting dates for every state →
South Dakota election guide
What South Dakota voters decide on November 3, 2026
South Dakota U.S. Senate: Brian Bengs (I) faces Mike Rounds (R, U.S. Senator since 2015). Incumbent status: Mike Rounds (R). The seat is currently held by a Republican. The Cook Political Report rates the race Solid R and Sabato's Crystal Ball rates it Safe R. Across 1 public poll in our 14-day average (window ending November 3, 2026), Brian Bengs averages 42.0% and Mike Rounds 50.0%; uncertainty for the average has not been calculated. With so few polls, the average can shift quickly. Full race page →
South Dakota governor: Dan Ahlers (D, Former state senator) faces Larry Rhoden (R, Governor since 2025). Incumbent status: Larry Rhoden (R). The seat is currently held by a Republican. The Cook Political Report rates the race Solid R and Sabato's Crystal Ball rates it Safe R. Across 1 public poll in our 14-day average (window ending November 3, 2026), Dan Ahlers averages 38.0% and Larry Rhoden 56.0%; uncertainty for the average has not been calculated. With so few polls, the average can shift quickly. Full race page →
South Dakota also elects its one at-large U.S. House seat, which counts toward the 218 needed for a House majority.
When polls close in South Dakota
Polls close at 8 p.m. ET (east) and 9 p.m. ET (west) on Election Day. See every state on our poll closing times page.
Related analysis
Questions people ask
What is on the ballot in South Dakota in 2026?
South Dakota votes for U.S. Senate and governor on November 3, 2026, along with its one at-large U.S. House seat and state and local offices.
When do polls close in South Dakota?
Polls in South Dakota close at 8 p.m. ET (east) and 9 p.m. ET (west) on Tuesday, November 3, 2026. Anyone in line at closing time can still vote.
How do I register to vote in South Dakota?
Registration deadlines and rules differ by state. Use vote.gov to register in South Dakota or to find your state election office, which has official deadlines and polling places.