Possible leader: Brian Mayer (University of Arizona)

Type of poverty: Border community

Tucson-Nogales is one of the best-known representatives of "border poverty," with Nogales of course located directly on the Mexican border and Tucson serving as the associated big-city destination. In Nogales, 40.7 percent of the city is foreign-born, and 88.5 percent of city residents speak a language other than English at home. The official poverty rate, 35.9 percent, is only slightly lower than that for Detroit.

 Tucson and Nogales, Arizona