Does Colorado Have Safe-Driving Cities?

Motorists in Sioux Falls, South Dakota are the safest in the nation -- but two Colorado cities aren't far behind.

That's according to a new study by Allstate Insurance.

The company calculated the chance that drivers in 200 of the nation's most populated cities would be involved in an accident.

Sioux Falls motorists average an accident once every 14-point-three years -- 30 percent better than the national rate of one every ten years.

Researchers with Allstate analyzed two years of internal crash data for the study.

Fort Collins was ranked second on the list, and Colorado Springs placed ninth.

The study says motorists in Newark, New Jersey are most at risk, with an accident once every five years.