In consultation with the Sanders and Clinton campaigns, the party agreed to wait until the April 6 canvass to release the official tally.
"Clearly the results are not going to flip in any way," said Democratic Party Executive Director Lauren Littlefield, noting that on the national level, the race is a fight for individual delegates. "But because this is a tight race, we want to make sure our bases are covered."
Clinton, who won Arizona's primary Tuesday, has a big delegate lead on Sanders, who is counting on continued success in Western states to close the gap.
The Salt Lake Tribune based its preliminary delegate split on unofficial election results released by the party. Nine of those 33 pledged delegates are awarded based on the statewide vote, while the remainders are split among Utah's four congressional districts. The Associated Press says the split is 26 for Sanders and six for Clinton, leaving one delegate unaccounted for.
That doesn't include superdelegates, like Corroon, who are party insiders allowed to pick their favorite candidate regardless of the caucus vote. Corroon, who isn't a fan of the superdelegate process in the Democratic Party, said he'd support the candidate who won the caucus and therefore is supporting Sanders.
Two of the state's superdelegates — Patrice Arent, the national committeewoman, and Breanne Miller, the party's vice chairwoman — are supporting Clinton, who received 20 percent of the caucus vote. National Committeeman Wayne Holland says he hasn't decided.
Littlefield called the big turnout, which included 20,000 new voters, "the largest growth opportunity for the Utah Democratic Party in decades," and yet she and Corroon criticized state leaders for not funding a full primary, instead leaving the vote to party-run caucuses.
A primary would have allowed voters to go to their regular precincts throughout the day or vote by mail and would have cost $3 million.
Instead, the Democrats spent $20,000 to fund 90 voting locations staffed by volunteers with only a guess at what the turnout would be. That estimate was low, and as a result, half the caucus meetings ran out of ballots, causing a scramble to print more.
The lines in some locations stretched for city blocks, with the party promising to let anyone vote if they were in line by 8:30 p.m. At least early in the night, there was a communal, even celebratory, vibe in the crowd, though that dissipated as the night wore on and the temperature dropped. At Beehive Elementary in Kearns, the last voters made it to the front of the line at about 11 p.m.
The two biggest caucus meetings, held at Clayton Middle School on Salt Lake City's east side and in the heart of Provo, each had nearly 4,000 people vote, dwarfing the number of ballots on hand.
"Overwhelming turnout is a great problem to have," Corroon said, "but it comes with the challenges as well."
The turnout was unprecedented for a caucus, but it fell far short of what the state has seen in presidential primaries. As an example, in 2008, when left-leaning Utahns had a choice between Hillary Clinton and then-Sen. Barack Obama, more than 132,000 voted.
Unlike that primary, in Tuesday's caucus, deployed members of the military and overseas voters were "disenfranchised," Corroon said. Parents had to decide who would stay with their children and who would stand in the long lines.