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United States · Election results history · 2010 House · South Dakota
Election 2010 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

2010 US House elections in South Dakota

South Dakota elected one member of the House in 2010. Kristi Noem (Republican) beat Stephanie Herseth Sandlin (Democrat) in South Dakota in 2010, 48.1% to 45.9%, a margin of 2.2 points and 7,114 votes.

In the House vote by county, Republicans led in 36 of the 65 counties and Democrats in 29. The largest, Minnehaha, cast 65,096 votes and went to the Democrat by 5.3 points. The closest was Bennett, where 3 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Every district

DistrictDemocratVotesRepublicanVotesOthersMargin
At large Stephanie Herseth Sandlin146,589 (45.9%) Kristi Noem153,703 (48.1%) 19,134 R+2.2

The House vote in every county

CountyDemocratRepublicanOthersTotalMargin
Minnehaha 32,430 49.8% 28,968 44.5% 3,698 65,096 D+5.3
Pennington 13,597 36.7% 21,489 57.9% 2,002 37,088 R+21.3
Lincoln 7,699 42.8% 9,440 52.4% 862 18,001 R+9.7
Brown 8,100 56.0% 5,712 39.5% 665 14,477 D+16.5
Brookings 6,195 55.6% 4,147 37.2% 808 11,150 D+18.4
Codington 4,684 45.3% 4,983 48.2% 679 10,346 R+2.9
Lawrence 4,019 39.4% 5,431 53.3% 747 10,197 R+13.8
Meade 3,049 32.4% 5,741 61.1% 606 9,396 R+28.7
Yankton 4,336 50.1% 3,653 42.2% 671 8,660 D+7.9
Hughes 3,432 44.5% 3,849 49.9% 425 7,706 R+5.4
Davison 3,437 47.2% 3,467 47.6% 374 7,278 R+0.4
Beadle 3,541 51.3% 2,941 42.6% 418 6,900 D+8.7
Union 2,408 39.9% 3,356 55.6% 272 6,036 R+15.7
Lake 2,458 47.2% 2,414 46.4% 332 5,204 D+0.8
Clay 2,802 59.7% 1,642 35.0% 246 4,690 D+24.7
Custer 1,278 32.2% 2,378 59.9% 313 3,969 R+27.7
Roberts 2,077 53.9% 1,507 39.1% 268 3,852 D+14.8
Turner 1,676 44.1% 1,875 49.3% 252 3,803 R+5.2
Butte 1,128 30.4% 2,357 63.4% 231 3,716 R+33.1
Charles Mix 1,620 46.1% 1,710 48.7% 182 3,512 R+2.6
Grant 1,638 46.8% 1,597 45.6% 265 3,500 D+1.2
Hutchinson 1,176 36.7% 1,822 56.9% 203 3,201 R+20.2
Fall River 1,056 33.9% 1,824 58.5% 236 3,116 R+24.6
Spink 1,564 53.2% 1,201 40.9% 175 2,940 D+12.3
Bon Homme 1,334 47.1% 1,265 44.6% 235 2,834 D+2.4
Day 1,668 60.5% 937 34.0% 153 2,758 D+26.5
Moody 1,433 52.2% 1,111 40.5% 201 2,745 D+11.7
Hamlin 963 36.4% 1,463 55.3% 220 2,646 R+18.9
McCook 1,126 44.8% 1,216 48.4% 170 2,512 R+3.6
Tripp 949 37.8% 1,390 55.4% 169 2,508 R+17.6
Kingsbury 1,229 49.7% 1,044 42.2% 202 2,475 D+7.5
Walworth 871 38.9% 1,229 54.9% 139 2,239 R+16.0
Brule 1,017 47.3% 971 45.2% 160 2,148 D+2.1
Gregory 785 38.2% 1,129 55.0% 139 2,053 R+16.8
Deuel 999 48.8% 877 42.9% 170 2,046 D+6.0
Todd 1,500 74.9% 421 21.0% 81 2,002 D+53.9
Marshall 1,107 59.8% 660 35.6% 85 1,852 D+24.1
Hand 804 43.7% 906 49.2% 130 1,840 R+5.5
Edmunds 834 46.5% 838 46.7% 123 1,795 R+0.2
Hanson 594 34.1% 1,048 60.1% 102 1,744 R+26.0
Clark 787 46.7% 773 45.8% 126 1,686 D+0.8
Douglas 489 29.4% 1,083 65.1% 91 1,663 R+35.7
Dewey 1,070 67.9% 442 28.0% 64 1,576 D+39.8
Stanley 601 42.1% 726 50.9% 100 1,427 R+8.8
Lyman 604 43.1% 677 48.4% 119 1,400 R+5.2
Aurora 707 50.7% 593 42.5% 94 1,394 D+8.2
Perkins 418 30.4% 859 62.4% 100 1,377 R+32.0
Potter 518 39.2% 745 56.4% 59 1,322 R+17.2
McPherson 447 37.0% 692 57.3% 68 1,207 R+20.3
Sanborn 578 49.7% 514 44.2% 72 1,164 D+5.5
Jerauld 581 51.4% 461 40.8% 89 1,131 D+10.6
Miner 581 52.1% 458 41.1% 76 1,115 D+11.0
Faulk 466 42.9% 553 50.9% 68 1,087 R+8.0
Bennett 502 47.4% 499 47.2% 57 1,058 D+0.3
Haakon 254 24.5% 718 69.4% 63 1,035 R+44.8
Jackson 369 38.4% 534 55.5% 59 962 R+17.2
Corson 450 51.6% 362 41.5% 60 872 D+10.1
Campbell 301 38.1% 452 57.2% 37 790 R+19.1
Mellette 373 49.2% 320 42.2% 65 758 D+7.0
Sully 270 36.2% 427 57.2% 49 746 R+21.0
Hyde 277 38.5% 412 57.2% 31 720 R+18.8
Ziebach 415 60.3% 245 35.6% 28 688 D+24.7
Harding 127 18.9% 490 73.0% 54 671 R+54.1
Jones 180 30.5% 377 63.9% 33 590 R+33.4
Buffalo 351 77.5% 91 20.1% 11 453 D+57.4

Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

South Dakota in every House election we hold

YearSeatsHouse vote
2024 D 0, R 1 R+44.1
2022 D 0, R 1 R+77.4
2020 D 0, R 1 R+81.0
2018 D 0, R 1 R+24.3
2016 D 0, R 1 R+28.2
2014 D 0, R 1 R+33.1
2012 D 0, R 1 R+14.9
2010 D 0, R 1 R+2.2
2008 D 1, R 0 D+35.1
2006 D 1, R 0 D+39.8
2004 D 1, R 0 D+7.4
2002 D 0, R 1 R+7.9
2000 D 0, R 1 R+48.5
1998 D 0, R 1 R+50.2
1996 D 0, R 1 R+20.7
1994 D 1, R 0 D+23.2
1992 D 1, R 0 D+42.3
1990 D 1, R 0 D+35.1