Concerns about illegal drugs and cartel-related violence are especially widespread in the North, where Mexico’s cartels have been especially active. Nearly nine-in-ten (87%) in North Mexico say illegal drugs are a very big problem in their country, compared with 69% in the South and in the Greater Mexico City area and 63% in Central Mexico. Similarly, 94% in the North see the violence associated with drug cartels as a very big problem; 75% in Mexico City, 73% in the South and 69% in Central Mexico share this concern.