Younger voters have tended to be Mitt Romney's weakest age group, but he won more support Tuesday from voters under 30 than any of the Republican candidates.
The Center for Information & Research on Civic Learning & Engagement, which studies youth voting issues, found in a preliminary analysis that Romney topped Texas Rep. Ron Paul by 16 percentage points.
About 100,000 young Floridians voted in the Tuesday GOP primary. Romney got 41 percent. Paul had 25 percent, followed by former House Speaker Newt Gingrich, 21 percent, and former Pennsylvania Sen. Rick Santorum, 13 percent.