Election results / South Dakota
November 3, 2026 · U.S. Senate
U.S. Senate
South Dakota
Full contest · Nov 3, 2026
Reported vote share305,062 votes
Vote counts: Associated Press, via NBC News. Winner projections: NBC News Decision Desk. These returns are not certified.
Choose a race, then select a state or county to see its votes. A lead in the count is different from a projected win.
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U.S. Census Bureau · 2025 reference boundaries. County colors describe this contest’s reported county votes, not every voter or precinct in the county.
County by county
66 with returns
Choose a county to see every candidate’s votes. These are county leaders, not race calls. Unlisted counties have no reviewed return in this snapshot.
County vote totals and leading choice for U.S. Senate| County | Leading choice | Votes for leader | Share |
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| Aurora County ↗ | Mike Rounds | 679 | 70.1% |
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| Beadle County ↗ | Mike Rounds | 3,282 | 68.4% |
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| Bennett County ↗ | Mike Rounds | 499 | 60.0% |
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| Bon Homme County ↗ | Mike Rounds | 1,540 | 71.8% |
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| Brookings County ↗ | Mike Rounds | 6,408 | 56.0% |
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| Brown County ↗ | Mike Rounds | 7,277 | 60.6% |
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| Brule County ↗ | Mike Rounds | 1,211 | 68.4% |
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| Buffalo County ↗ | Brian Bengs | 222 | 61.0% |
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| Butte County ↗ | Mike Rounds | 2,524 | 73.6% |
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| Campbell County ↗ | Mike Rounds | 488 | 81.2% |
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| Charles Mix County ↗ | Mike Rounds | 1,838 | 69.1% |
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| Clark County ↗ | Mike Rounds | 1,170 | 76.3% |
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| Clay County ↗ | Brian Bengs | 2,276 | 56.3% |
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| Codington County ↗ | Mike Rounds | 6,421 | 65.0% |
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| Corson County ↗ | Mike Rounds | 395 | 55.6% |
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| Custer County ↗ | Mike Rounds | 3,147 | 67.6% |
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| Davison County ↗ | Mike Rounds | 4,014 | 66.4% |
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| Day County ↗ | Mike Rounds | 1,389 | 61.9% |
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| Deuel County ↗ | Mike Rounds | 1,187 | 70.4% |
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| Dewey County ↗ | Brian Bengs | 675 | 53.8% |
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| Douglas County ↗ | Mike Rounds | 1,084 | 86.1% |
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| Edmunds County ↗ | Mike Rounds | 1,088 | 75.6% |
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| Fall River County ↗ | Mike Rounds | 2,217 | 67.9% |
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| Faulk County ↗ | Mike Rounds | 658 | 80.7% |
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| Grant County ↗ | Mike Rounds | 2,043 | 70.4% |
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| Gregory County ↗ | Mike Rounds | 1,186 | 75.5% |
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| Haakon County ↗ | Mike Rounds | 711 | 85.0% |
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| Hamlin County ↗ | Mike Rounds | 1,658 | 74.3% |
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| Hand County ↗ | Mike Rounds | 989 | 78.1% |
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| Hanson County ↗ | Mike Rounds | 887 | 75.1% |
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| Harding County ↗ | Mike Rounds | 567 | 86.3% |
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| Hughes County ↗ | Mike Rounds | 4,266 | 66.1% |
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| Hutchinson County ↗ | Mike Rounds | 1,957 | 76.6% |
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| Hyde County ↗ | Mike Rounds | 397 | 78.5% |
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| Jackson County ↗ | Mike Rounds | 510 | 66.4% |
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| Jerauld County ↗ | Mike Rounds | 488 | 70.4% |
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| Jones County ↗ | Mike Rounds | 380 | 83.5% |
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| Kingsbury County ↗ | Mike Rounds | 1,421 | 69.3% |
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| Lake County ↗ | Mike Rounds | 2,831 | 64.0% |
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| Lawrence County ↗ | Mike Rounds | 6,460 | 59.5% |
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| Lincoln County ↗ | Mike Rounds | 15,387 | 58.6% |
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| Lyman County ↗ | Mike Rounds | 728 | 64.8% |
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| Marshall County ↗ | Mike Rounds | 1,007 | 60.8% |
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| McCook County ↗ | Mike Rounds | 1,555 | 71.9% |
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| McPherson County ↗ | Mike Rounds | 816 | 82.3% |
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| Meade County ↗ | Mike Rounds | 6,916 | 69.2% |
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| Mellette County ↗ | Mike Rounds | 372 | 61.4% |
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| Miner County ↗ | Mike Rounds | 622 | 70.4% |
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| Minnehaha County ↗ | Mike Rounds | 34,354 | 51.6% |
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| Moody County ↗ | Mike Rounds | 1,517 | 61.9% |
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| Oglala Lakota County ↗ | Brian Bengs | 1,814 | 84.4% |
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| Pennington County ↗ | Mike Rounds | 21,843 | 57.2% |
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| Perkins County ↗ | Mike Rounds | 985 | 77.9% |
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| Potter County ↗ | Mike Rounds | 745 | 80.6% |
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| Roberts County ↗ | Mike Rounds | 1,730 | 58.5% |
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| Sanborn County ↗ | Mike Rounds | 585 | 70.7% |
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| Spink County ↗ | Mike Rounds | 1,539 | 68.2% |
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| Stanley County ↗ | Mike Rounds | 981 | 74.0% |
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| Sully County ↗ | Mike Rounds | 575 | 80.8% |
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| Todd County ↗ | Brian Bengs | 1,202 | 74.8% |
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| Tripp County ↗ | Mike Rounds | 1,540 | 79.7% |
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| Turner County ↗ | Mike Rounds | 2,344 | 72.3% |
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| Union County ↗ | Mike Rounds | 3,862 | 67.0% |
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| Walworth County ↗ | Mike Rounds | 1,272 | 77.6% |
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| Yankton County ↗ | Mike Rounds | 4,499 | 58.6% |
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| Ziebach County ↗ | Mike Rounds | 300 | 52.9% |
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