The report is designed to provide economic and demographic information useful to water resources planning for the Chesapeake Bay-Susquehanna River Basins. The information includes historical and projected estimates of population, labor force, employment by industry group, income and related measures. The historical years shown in this report are 1950 and 1960; the projections are presented for each decadal year between 1970 and 2020. The areas for which projections are presented include the nation, the six-state area in which the River Basins are located, each of the separate River Basins, subregions within each Basin as defined by economic criteria, regions within each Basin as defined by hydrologic criteria, and countries within each subregion.