Map from the 2009 Human Development Report, which uses HDI, the Human Development Index, as a measure of the general level of development for jurisdictions on both sides of the US-Mexico border
What is interesting is that the lowest [Human Development Index (HDI)] county on the US side (Starr County Texas) is higher than the highest HDI municipality in Mexico (i.e., Mexicali).
via
andrewsullivan.theatlantic.com map from the 2009 Human Development Report.
