It was reported that 124,331 Iowans participated in the caucuses. The initial county caucuses assigned delegates for further caucuses with delegates not being bound to vote for the candidate. Actual delegates to the Democratic National Convention would be chosen later: 29 at the district caucuses on April 24, 2004 and 16 at the state convention on June 12, 2004. Besides these 45 delegates assigned through the caucus system, 10 other delegates are assigned by the state party and one is elected at large at the state convention. The successful candidate at the 2004 Democratic National Convention required approximately 2,160 delegates to win the nomination.