South Dakota Voter Registration
Party registration trends from 2008 to 2020
As of 2020, South Dakota has 578,666 registered voters. Democrats hold a R+20.6 registration advantage. Since 2008, Republicans gained 13.6 points.
Current Registration (2020)
Democratic
158,829
27.4%
Republican
277,788
48.0%
Other/None
142,049
24.5%
Total Registered
578,666
Advantage
R+20.6
Registration Trend
↘
Republicans gained 13.6 points
From 2008 to 2020
The registration advantage has shifted 13.6 points toward Republicans.
Registration Over Time
2008530,403
2012528,142
2016544,428
2020578,666
Democratic
Republican
Other/None
Historical Data
| Year | Democratic | Republican | Other | Total | Advantage |
|---|---|---|---|---|---|
| 2020 | 158,829(27.4%) | 277,788(48.0%) | 142,049 | 578,666 | R+20.6(-5.6) |
| 2016 | 170,694(31.4%) | 252,116(46.3%) | 121,618 | 544,428 | R+15.0(-4.8) |
| 2012 | 189,493(35.9%) | 243,113(46.0%) | 95,536 | 528,142 | R+10.2(-3.2) |
| 2008 | 204,413(38.5%) | 241,528(45.5%) | 84,462 | 530,403 | R+7.0 |