State reference

How does government work in South Dakota?

South Dakota’s legislature, governor, courts, local governments and election offices, with a source for every fact.

Facts checked November 5, 2026. Anything we could not verify from a source is left out rather than guessed. Rules change, so confirm deadlines with the official election office.

105

State legislators

Legislature

4 years

Governor’s term

Governor

66

Counties

Local

1

Seat in the US House

Clerk of the House

Foundation
South Dakota Constitution source
In effect since
1889 source

What may surprise you here

  • South Dakota counts legislative term limits chamber by chamber: no more than eight consecutive years in the Senate and eight consecutive years in the House. source
  • South Dakota has no intermediate appellate court; the constitution describes a unified system of a Supreme Court, circuit courts, and courts of limited jurisdiction. source
  • The Democratic primary is open to independents, while the Republican primary is limited to registered Republicans. source

Legislature

Name
Legislature source
Senate: seats
35 source
Senate: term in years
2 source
House of Representatives: seats
70 source
House of Representatives: term in years
2 source
Term limits
Four consecutive terms (eight consecutive years) in each chamber source

Structure set by: S.D. Const. art. III, §§ 1, 6.

Governor and statewide offices

Term in years
4 source
Term limit
Two consecutive terms source
Next regular election
2030 source
Lieutenant governor
joint ticket source
Attorney general
elected source
Attorney general’s term in years
4 source
Secretary of state
elected source
Secretary of state’s term in years
4 source

Courts

Highest court
Supreme Court source
Intermediate appeals court
None source
Main trial court
Circuit Court source
How high-court judges reach the bench
mixed: circuit judges by nonpartisan election; Supreme Court justices appointed, then retention votes source

Local government

Called
county source
How many
66 source
Cities and towns
South Dakota has 310 municipal governments and 897 township governments, according to the Census Bureau’s 2022 count. source
Schools
All 149 of the state’s school systems are independent school districts, according to the Census Bureau’s 2022 count. source

Elections

Chief election official
Secretary of State source
Who runs elections locally
county auditors source
Primary type
partially closed source
Regular governor elections fall in
even source
Citizen initiatives
yes source

Who holds these offices

As of November 5, 2026. Terms of the current Congress run to January 3, 2027. Winners of the November 3, 2026 elections are not shown until results are certified and they take office.

Governor: Larry Rhoden Republican, in office since January 25, 2025. source

US senators for South Dakota
SenatorPartySeatSenator sinceCurrent term ends
Mike RoundsRepublicanClass 2January 6, 2015January 3, 2027
John ThuneRepublicanClass 3January 4, 2005January 3, 2029
Members of the House for South Dakota
SeatMemberPartyIn the House since
At largeDusty JohnsonRepublicanJanuary 3, 2019
At-large district
Boundaries for the 119th Congress, simplified from the Census Bureau cartographic boundary file. For an exact address, use the House lookup.

Who has held each Senate seat since 2001

Each band is one person in the seat. The line marks November 2026; anything to its right is the rest of a current term. Dates through 2026 come from the congress-legislators public dataset, whose current members are matched against the Senate’s own roster on every build.

Senate seat, Class 2
  • Tim Johnson (D): 1997 to 2015
  • Mike Rounds (R): 2015 to 2027
Senate seat, Class 3
  • Thomas Daschle (D): 1999 to 2005
  • John Thune (R): 2005 to 2029

Sources