Delaware's governor and lieutenant governor, John Carney and Bethany Hall-Long, declared February 12, 2017, Charles Darwin Day in the state of Delaware, urging (PDF) "all citizens to join us in celebrating his tremendous contributions in the field of science."

South Dakota's Senate Bill 55 passed the Senate on a 23-12 vote on January 25, 2017, "despite guidance from the State Department of Education, state school boards, school administrators, teachers and scientists," according to the Sioux Falls Argus-Leader (January 25, 2017).