State legislature
South Dakota Legislature
Republican members hold a majority in the South Dakota Senate. Republican members hold a majority in the South Dakota House of Representatives. Seats as of the legislature's member list before the November 3, 2026 election.
South Dakota Senate
South Dakota Senate
Seats before the November 3, 2026 election
18 needed for a majority
- 3 Democratic
- 31 Republican
- 1 Vacant
| Party or status | Seats |
|---|---|
| Democratic | 3 |
| Republican | 31 |
| Vacant | 1 |
Seats before the November 3, 2026 election, current to November 2, 2026, counted from the official member list. Source: South Dakota Senate (opens in a new tab).
South Dakota House of Representatives
South Dakota House of Representatives
Seats before the November 3, 2026 election
36 needed for a majority
- 6 Democratic
- 63 Republican
- 1 Vacant
| Party or status | Seats |
|---|---|
| Democratic | 6 |
| Republican | 63 |
| Vacant | 1 |
Seats before the November 3, 2026 election, current to November 2, 2026, counted from the official member list. Source: South Dakota House of Representatives (opens in a new tab).
Sources and methodology
ShowHideWhere the seat counts and district lines come from.
South Dakota Senate: These are the seats before the November 3, 2026 election, as the legislature listed them. South Dakota Senate current member list (opens in a new tab)
South Dakota House of Representatives: These are the seats before the November 3, 2026 election, as the legislature listed them. South Dakota House of Representatives current member list (opens in a new tab)
District lines come from the U.S. Census Bureau's upper chamber boundary file (Cartographic boundary files, state legislative districts), which maps the districts the state reported to the Census Bureau. Where a state has redrawn its districts since then, the state's own maps are the official ones. District names are the Census Bureau's.