The data measures the frequency of long ties in different geographic locations of the US and Mexico. Long ties, the edges in the connectivity network without any mutual contact, have been shown to play an important role in access to economic opportunities. Clustering coefficient is yet another related measure that captures the level of structural diversity in a network. Both these measures are provided at two different levels: zip codes and counties (or municipalities in Mexico). The data is described in more detail in the accompanying paper “Long ties, disruptive life events and economic prosperity.”