Gun violence cost U.S. tax payers nearly $700 million in 2010, according to a new study from the Urban Institute. Add "societal costs" and the number jumps to an estimated $174 billion. To help put these figures into context, note that the injuries associated with firearm assault, including homicide, aren’t evenly distributed across the country. Rather, they concentrate among uninsured black boys and men and in a relatively small number of communities. As an example, in Boston, one study found that more than half of all gun violence clustered around less than 3 percent of streets and intersections. And while firearm injuries typically affect black and Latino men and boys ages 15 to 34, in a study of six states, black females were found to have higher rates of hospitalization than white males in all but one. Such concentrations of violence, particularly among youth of color, study authors say, "should serve as a clear call to action to find new solutions to gun violence."

The six states studied: California, Maryland, Wisconsin, Arizona, New Jersey and North Carolina.

Read the full report here.

(h/t CNBC)