New FBI data shows that violent crime rates are improving across America, but among cities with the highest crime problems, murder rates continued to rise in 2011. After falling for five consecutive years, the number of violent crimes across the United States rose by 1.2% in 2012. Based on data published by the Federal Bureau of. Detroit is the Most Dangerous City in America for the second year in a row, according to data released today by the FBI. Detroit maintains this ranking despite an. Editor's note: For the most recent Most Dangerous Cities statistics, click here. At a community meeting in a Lutheran church earlier this year, Detroit. Here are the 20 cities highest rate of crime per 100,000 people: 20 | Miami, FL For the fifth year in a row, crime is down in the United States, according to FBI Statistics. The 2010 statistics show a 5.5% drop in violent crimes from. The recent economic recession hit cities hard. According to the Justice Department, by the end of 2011 nearly 12,000 police officers lost their jobs making it harder. Business Insider has ranked America's most dangerous cities based on recent FBI data. Though most regions of the U.S. saw declines, the Northeast saw an increase in murders (8.3%), forcible rapes (1.4%), and aggravated assaults (0.7%). Some places in Illinois have earned a spot on a violent list yet again. Of the communities on this list, four can be found in Illinois. For many Americans.