Over the years, the criminal element has penetrated various metropolises in California and Washington, giving the western U.S. the dubious distinction of being a hotbed for automotive theft and fraud. So it may come as a surprise that one Colorado city has earned top honors on this year's "Allstate America's Best Drivers Report."

To compile the annual report, Allstate actuaries conduct an in-depth analysis of claims data for the 200 largest U.S. cities in order to identify where drivers are presumably the safest, or rather the least likely to become involved in an auto collision. The actuaries examined internal property damage over a two-year period (from January 2010 to December 2011) to ensure the findings would not be impacted by external influences such as weather or road construction.

"[This report] was created to boost awareness about the importance of being safe and attentive behind the wheel, while providing drivers with tips and resources to improve their driving skills," explains Mike Roche, senior vice president of claims at Allstate.