Mitt Romney was pipped at the post by Rick Santorum at the Iowa caucuses in January, but neither will head into the national convention with the majority of delegates from the Hawkeye State.
Instead Ron Paul will go to the Republican National Convention in Tampa, Fla., in August with 21 of the 25 unbound delegates elected from Iowa over the weekend.
Paul won 10 of 13 delegates elected at Saturday's state convention in addition to having won 11 of 12 delegates elected at Friday night's district conventions.
"We thank the many Iowa Republican activists for working tirelessly toward this meaningful victory, in particular the work they performed in the service of constitutional government and personal liberty," Ron Paul campaign chairman Jesse Benton said.
"This win is a real validation for our campaign and its many supporters in Iowa and across our great nation.
"We look forward to bringing the Ron Paul delegation to Tampa and to making a significant, positive contribution to the 2012 Republican Party platform."