This would be the first of three times Hawaii was won by a Democratic presidential candidate with over 70% of the vote, the other two times being Barack Obama - who was born in the state - in 2008 and 2012, although by around 7-8 points less than Johnson's victory. This would also be the only time that a candidate won Hawaii with over 75% of the vote.
PresidentLyndon B. Johnson won the State of Hawaii by an absolute sweep-out landslide of 57.52 points. No presidential candidate has ever won a larger percentage of the vote or a larger margin since.
Results
1964 United States presidential election in Hawaii