[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/09/01/art.palinmoney.gi.jpg caption="Palin's favorable numbers among Iowa Republicans are strong, says a new poll - though one in four members of her party there have doubts."](CNN) - Sarah Palin's book tour brings her to Iowa in two weeks. If the former Alaska governor and last year's GOP vice presidential nominee decides to return to Iowa down to road to explore a race for the White House, a new survey suggests that Republicans in the state like her - but have some doubts.
According to a Des Moines Register Iowa poll, 68 percent of Hawkeye Republicans view Palin favorably. That's a statistically insignificant 2 points behind those who have a positive view of former Arkansas Gov. Mike Huckabee, who won the 2008 Iowa caucuses, which traditionally kick off the presidential primary season.
Among other potential 2012 candidates: The survey indicates that two out of three view former House Speaker Newt Gingrich favorably and 58 percent have a positive view of former Massachusetts Gov. Mitt Romney.
"With those kinds of numbers, if she were to become a candidate, while it's not a sure thing, she would be starting out in a very good position," veteran Iowa GOP strategist David Roederer told the Des Moines Register. Roederer ran McCain's 2008 Iowa campaign.
But according to the poll, nearly one in four Iowa Republicans view Palin unfavorably. That's double the 12 percent who view Huckabee in an unfavorable way.
Among all Iowans, the survey indicates that 55 percent hold an unfavorable opinion, with 37 percent seeing her in a positive light.
Palin's tour for her new book, "Going Rogue: An American Life," brings her to Iowa on December 6. Palin's scheduled to sign copies of her book at a Barnes and Noble bookstore in Sioux City, Iowa.
The Des Moines Register Iowa poll was conducted November 8-11, with 800 registered voters in Iowa questioned by telephone. The survey's sampling error is plus or minus 3.5 percentage points for the overall sample.
–CNN Deputy Political Director Paul Steinhauser contributed to this report
Follow Paul Steinhauser on Twitter: @psteinhausercnn