Here’s a great travel map of Mexico that visually shows the areas of Mexico that are subject to travel warnings.
http://www.travelweekly.com/uploadedFiles/MEXICOMAP4.pdf
Cabo is given an all-clear. With only two roads in/out (almost an island) and no strategic importance whatsoever to drug trafficking, the Los Cabos region is given a “no warning” status by the US State Department.