On the count of first choices, Biden and Sanders had taken approximately 56% and 31% of the vote, while 13% were spread between eight other candidates who had withdrawn from the race, notably senator Elizabeth Warren with 5% and representative Tulsi Gabbard with 4%.

On the final count a rather large amount of 4% of the votes were inactive, as they did not include a choice for one of the two candidates that had overcome the 15 percent hurdle.

[2] The Hawaii Democratic Party's draft delegate selection plan published on March 25, 2019, had called for a shift away from caucuses as in previous years to a party-run primary, also known as a firehouse primary or officially a "presidential preference poll", with a limited ranked-choice voting system allowing voters to select their top three choices.

Candidates had to meet a threshold of 15 percent at the congressional district or statewide level in order to be considered viable.

The 22 pledged delegates to the 2020 Democratic National Convention were allocated proportionally on the basis of the results of the primary.