2024Final results
2024 election for South Dakota Legislative District 18
South Dakota State Senate · South Dakota
Lauren Nelson (R) won with 57.2% of the vote, defeating Sarah Carda (D) by 14.4 points.
Lauren NelsonRepublican · winner
57.2%6,189
Sarah CardaDemocrat
42.8%4,629
10,818 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
The seat over time
D − R margin in this seat's races around 2024
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET