Contemporary sociologists typically trace social disorganization models to Emile Durkheim’s classic work. There is continuity between Durkheim’s concern for organic solidarity in societies that are changing rapidly and the social disorganization approach of Shaw and McKay (1969). However, Shaw and McKay view social disorganization as a situationally rooted variable and not as an inevitable property of all urban neighborhoods. They argued that socioeconomic status (SES), racial and ethnic heterogeneity, and residential stability account for variations in social disorganization and hence informal social control, which in turn account for the distribution of community crime. Empirical testing of Shaw and McKay’s research in other cities during the mid-20th century, with few exceptions, focused on the relationship between SES and delinquency or crime as a crucial test of the theory. As a whole, that research supports social disorganization theory. A handful of studies in the 1940s through early 1960s documented a relationship between social disorganization and crime. After a period of stagnation, social disorganization increased through the 1980s and since then has accelerated rapidly. Much of that research includes direct measurement of social disorganization, informal control, and collective efficacy. Clearly, many scholars perceive that social disorganization plays a central role in the distribution of neighborhood crime.