AP Photo/Paul Sancya
Crime Risk Index: 369 Detroit is the most populous of the 11 most dangerous cities and has a correspondingly high volume of crimes. In 2009, the number of violent and property crimes in the greater Detroit area totaled over 68,000, compared to Memphis’ 59,000. Motor City also has a high rate of arson--there were 624 reported acts of arson in Detroit in 2009. Cleveland was the next-closest city of the top 11, with 401.