This paper refers to the medical and paramedical resources existing in the area of the "Greater São Paulo", Brazil, in 1966, the last year on which there were available data. Considering the medical personnel, the number of inhabitants per each doctor was found to be 1008 to 17732, in the counties of São Paulo and Itaquaquecetuba, respectively. With respect to the area of the "Greater São Paulo", as a whole, there existed 5290 doctors, while for the county of São Paulo the number was 5074, which gives 1286 inhabitants per each doctor in this region. It the proposion of one doctor per 1000 inhabitants can be considered satisfactory, all the other components of the "Greater São Paulo" area except for the county of São Paulo, present an unsatisfactory level. Of those 38 components of the studied area, 12 have no doctor at all, which causes a total of 102322 inhabitants to be without medical assistance. As to the auxiliar health personnel, it was found to exist in greater concentration in the more urbanized and economically developed area, i.e., the county of São Paulo. It should be taken into account the reduced number of graduate nurses, nutricionists, laboratory technicians, and other related professionals in the area of the "Greater São Paulo". Approximately 50% of the counties in this area have not any kind of these professionals in their hospitals and parahospital units.
