The Center for Information & Research on Civic Learning & Engagement (CIRCLE) released ‘Revised Estimates Show Higher Turnout than Expected Iowa Youth Turnout Rate More than Triples 65,000 Iowans under the Age of Thirty Participate in the Caucuses’. (.pdf)

13% of eligible Iowans under the age of 30 turned out an increase from 4% in 2004. Most interesting turned out not just for Senator Barack Obama but for Governor Mike Huckabee as well. (Remember in 2004 the Iowa Caucus was not held for Republicans as George W. Bush was the incumbent).

The turnout rate has historically been low in Iowa caucuses, but the youth turnout rate
was much higher tonight than in recent years. This result continues a trend observed in
other elections since 2000. In the 2006 congressional elections, the voter turnout rate
among 18-to-29-year-olds increased by three percentage points compared to the previous
congressional election of 2002. And in the 2004 presidential election, the national youth
voter turnout rate rose 9 percentage points compared to 2000, reaching 49 percent. In
2004, under-30-year olds were registered to vote at the highest rate in 30 years.