4. Detroit, Michigan
As with the other Midwestern cities on this list, Detroit has experienced a crushing economic depression in recent years. The result has been an increase in poverty, less money to spend on the police department, and vast unemployment. Also, the gangs in Detroit are unique in that they don’t have any specific affiliations. Gang members in Detroit don’t tattoo their logos or wear certain colors, thus crime is even harder for police to identify. Being close to the Canadian border also makes Detroit a major trafficking hub, and thus furthers the gang activity in the city.