# 2010 South Dakota gubernatorial election

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The 2010 South Dakota gubernatorial election was held on November 2, 2010, to elect the Governor of South Dakota to a four-year term. Incumbent Republican Governor Mike Rounds was ineligible to run for re-election due to term limits.
Republican candidate Dennis Daugaard was elected, defeating Democratic candidate Scott Heidepriem.

## Republican primary
### Candidates

* Dennis Daugaard, Lieutenant Governor
* Gordon Howie, State Senator
* Dave Knudson, State Senate Majority Leader
* Ken Knuppe, rancher
* Scott Munsterman, former mayor of Brookings

### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Dennis Daugaard | 42,266 | 50.4 |
| | Republican | Scott Munsterman | 14,733 | 17.6 |
| | Republican | Dave Knudson | 13,217 | 15.8 |
| | Republican | Gordon Howie | 10,430 | 12.4 |
| | Republican | Ken Knuppe | 3,186 | 3.8 |
| Total votes | Total votes | Total votes | 83,832 | 100 |

## Democratic primary
### Candidate

* Scott Heidepriem, State Senate Minority Leader

### Results

Heidepriem faced no opposition in the Democratic primary.

## General election
### Predictions

| Source | Ranking | As of |
| Cook Political Report | Likely R | October 14, 2010 |
| Rothenberg | Safe R | October 28, 2010 |
| RealClearPolitics | Safe R | November 1, 2010 |
| Sabato's Crystal Ball | Likely R | October 28, 2010 |
| CQ Politics | Likely R | October 28, 2010 |

### Polling

| Poll source | Dates administered | Dennis Daugaard (R) | Scott Heidepriem (D) |
| Nielson Brothers Polling | October 20–22, 2010 | 43% | 40% |
| Rasmussen Reports | October 20, 2010 | 55% | 36% |
| Rasmussen Reports | October 9, 2010 | 57% | 37% |
| Rasmussen Reports | September 8, 2010 | 57% | 28% |
| Rasmussen Reports | August 3, 2010 | 59% | 27% |
| Rasmussen Reports | July 6, 2010 | 52% | 35% |
| Rasmussen Reports | June 10, 2010 | 52% | 36% |
| Rasmussen Reports | May 26, 2010 | 51% | 36% |
| Rasmussen Reports | April 21, 2010 | 53% | 33% |
| Rasmussen Reports | March 25, 2010 | 49% | 32% |
| Rasmussen Reports | February 23, 2010 | 41% | 32% |
| Public Policy Polling | December 10–13, 2009 | 42% | 29% |

### Results

South Dakota gubernatorial election, 2010 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Dennis Daugaard | 195,046 | 61.51% | −0.18% |
| | Democratic | Scott Heidepriem | 122,037 | 38.49% | +2.36% |
| Majority | Majority | Majority | 73,009 | 23.03% | −2.54% |
| Turnout | Turnout | Turnout | 317,083 | | |
| | Republican hold | Republican hold | Swing | | |

#### Counties that flipped from Republican to Democratic

* Day (largest city: Webster)
* Roberts (largest city: Sisseton)
* Ziebach (largest city: Dupree)
* Corson (Largest city: McLaughlin)
* Dewey (Largest city: North Eagle Butte)