State delegation · 119th Congress
South Dakota
South Dakota sends 3 members to the 119th Congress: 2 senators and 1 representative. The delegation is made up of 3 Republicans.
The delegation's average score is 77 out of 100, a C. That ranks South Dakota 27th of the 50 states, and it is about the same as the national average of 77.
Together the delegation was eligible for 2,504 roll-call votes and missed 41, an attendance rate of 98.4%. Its members sponsored 120 bills and joint resolutions. Of those, 2 became law and 4 more passed at least one chamber.
The highest score in the delegation belongs to Mike Rounds (B-, 83). The lowest belongs to John Thune (C, 74).
South Dakota's senators average 78 and its House members average 74. Senators are ranked only against other senators and representatives only against other representatives, so each number measures that group against its own chamber.
Every member from South Dakota
| Member | Seat | Party | Grade | Attendance | Bills | Laws | Cosponsored |
|---|---|---|---|---|---|---|---|
| Mike Rounds | Senate | R | B- | 99.1% | 63 | 0 | 129 |
| Dusty Johnson | House, SD At-large | R | C | 95.3% | 36 | 1 | 127 |
| John Thune | Senate | R | C | 99.9% | 21 | 1 | 42 |
Members are listed from highest to lowest score. "Bills" counts bills and joint resolutions sponsored; "Laws" counts how many of those became law. Updated 2026-10-21 14:29 UTC. How grades are calculated · All states