Looking at wikipedia's list, I have walked all over Ensenada and Guadalajara w/o problems. In fact, I really enjoyed them. But I know how to walk a city and r

Looking at wikipedia's list, I have walked all over Ensenada and Guadalajara w/o problems. In fact, I really enjoyed them. But I know how to walk a city and read a barrio. Mexico City is really something, FWIW. I will say that I have felt more uncomfortable walking in certain parts of LA, NYC, Oakland, Chicago, and yes SF (I lived SOMA in early '90s, before the boom), than I have in Mexican cities. (Not minimizing the carnage, if you live outside of the nice parts, I'm sure it's hell.)