Presidential primary
Presidential Primary turnout
Compare registered voters, ballots cast, and turnout percentages for presidential-primary elections.
Historical voter participation
Registration and Turnout
Historical registration and turnout tables for South Dakota presidential primary, primary, and general elections.
Published data series
Registration and turnout series
The Secretary of State maintains statewide tables for presidential primary, primary, and general elections. The complete historical table covers elections beginning in 1988 and includes later election cycles through 2024.
Primary
Primary Election turnout
Review statewide registration and participation for regular primary elections.
General
General Election turnout
Review statewide registration and participation for general elections.
Recent examples
Selected recent turnout
These totals are drawn from the published election-year archives.
| Election | Registered voters | Ballots cast | Turnout |
|---|---|---|---|
| 2020 General | 578,655 | 427,529 | 73.88% |
| 2020 Primary | 546,899 | 154,328 | 28.22% |
| 2018 General | 545,308 | 341,048 | 64.89% |
| 2018 Primary | 530,890 | 141,044 | 26.57% |
| 2016 General | 544,393 active | 378,995 | 69.62% |
| 2016 Primary | 574,990 | 126,128 | 21.94% |
Older records
Turnout before 1988
Earlier participation figures are preserved with the historical election documents and official return books.
Complete Archive
Earlier official records
Earlier records remain available in the complete SDSOS.gov archive.