Designed as a technical resource, this paper provides information related to adoption of National Diffusion Network (NDN) programs in urban districts with populations in excess of 300,000. Data were drawn from a survey mailed to all NDN participants in early 1978, and are presented in four sections, mostly in the form of graphs, tables and charts. Section I provides results of the survey and observations of NDN involvement in the forty-eight cities. Subject areas dealt with in this section include overall results of the survey, cities with the most adoptions, types of programs adopted, types of students served, funding sources for adoption, and conclusions of the study. Section II lists the facilitators serving the forty-eight cities. Section III offers a list of developer/demonstrators with adoptions in the forty-eight cities and the cities in which the adoptions occurred. Section IV presents a profile of adoptions for each of the forty-eight cities. (Author/EB)