Sixty percent to approve a constitutional amendment. 2026 results by county, from South Dakota's official results file: Yes 42.4%, No 57.6% statewide.
Statewide
Title: An Amendment to the South Dakota Constitution Requiring that a Proposed Constitutional Amendment or Revision Receive an Affirmative Vote of Sixty Percent of the Votes Cast. Attorney General explanation: The State Constitution provides that any proposed constitutional amendment or revision must be submitted to the voters for approval. Currently, a proposed constitutional amendment or revision becomes part of the Constitution if approved by a majority of the votes cast. This proposed Constitutional Amendment increases the number of votes required for a proposed constitutional amendment or revision to become part of the Constitution. If passed, further constitutional amendments must receive an affirmative vote of sixty percent of the votes cast to be implemented.
The state's unofficial totals. We don't call measures.
By county
66 counties: Yes has the most votes in 15, No has the most votes in 50. The figures for each county are from the same file and add up to the statewide totals.