"The research reported here presents a typology of small cities, as well as an analysis of the causes of population growth within city types. For this research eighty-eight incorporated cities and towns in the South Atlantic and East South Central census divisions [of the United States] were chosen for investigation, all having 1960 populations between 10,000 and 50,000." Path models are constructed for each city class using the decennial rate of population growth between 1960 and 1970 as the endogenous variable and net migration and employment changes as intermediate variables.