County record · fips 46127 · South Dakota
UnionSD
Republican ×7 since 2000reported 1892–2024 · 34 elections
The Long Record
34 elections against the South Dakota and national vote
2024 result
R+41.5
won by Republicans
Record since first cycle
12–22
Dem–Rep two-party wins
Voted with the winner
24/34
71% of its elections
Closest election
1948
D+0.7
this countySouth Dakotanational (official)dot colour = two-party winner · hollow = tie or unknown total · click a dot to open that election
The Biggest Swings
Cycle-over-cycle change in the two-party margin, in points
| Election | Swing | Toward |
|---|---|---|
| 1912 | +116.0 pts | Democrats |
| 1916 | -91.5 pts | Republicans |
| 1896 | +62.9 pts | Democrats |
| 1932 | +50.6 pts | Democrats |
| 1920 | -47.6 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
17,081
College (BA+)
37%
Median income
$89,636
2024 dollars
Non-white
12%
Rural
58%
Age 65+
19%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Plymouth, IA · Sioux, IA · Woodbury, IA · Dakota, NE · Dixon, NE · Clay, SD · Lincoln, SD