Ted,  as long as you stay out of the inner city in Chicago, Baltimore, Oakland, etc,  you run very little risk. But the most important thing you can do to prevent being killed by a gun is to not be a criminal.  The Baltimore Sun analyzed Charm City's murders for 2012 and reported that 90% of the shooters and 80% of the victims had prior criminal records.   Similarly,  the Chicago Tribune reported that had the State of Illinois kept felons in prison for their entire sentence, and not let them out early under a variety of programs,  the murder rate in Chicago would have gone down by a significant amount.