Not even close. Do you have a cite for your figures?
According to this report, there are 78 countries with a lower homicide rate than the USA.
A United Nations 2010 chart lists the U.S. as having a murder rate of 5.22 per 100,000 people. The world average homicide rate: 9.63 per 100,000.
And 89 countries have higher murder rates than the U.S.
Two of the cities mentioned are comparatively speaking lower than many others:
Washington D.C. (19) has a rate of gun homicide; Gun homicide in Chicago is (11.6)per 100,000.
If it were a country, New Orleans (with a rate 62.1 gun murders per 100,000 people) would rank second in the world.
Detroit’s gun-homicide rate (35.9)
Baltimore’s rate (29.7)
Gun murder in Newark (25.4) and Miami (23.7)
Atlanta’s rate (17.2) i
Gun murder in Buffalo is (16.5)
Houston’s rate is (12.9)
The U.S. may have the highest level of gun ownership in the world, but its rate of gun homicides is only about three per 100,000.