The South Dakota Secretary of State has released the final registration totals. See the current figures here.

In February 2016, totals were: Republican 238,222; Democratic 167,064; independent and other 107,493; Libertarian 1,415; Constitution 529.

Between February and the current tally, Republicans have increased 5.63%; Democrats have increased 2.00%; independents and others have increased 10.58%; Libertarians have increased 13.14%; Constitution has decreased 5.10%.