Borchert, David J.Fitzsimmons, James D.2019-08-142019-08-141978P1018https://hdl.handle.net/11299/205673Twenty-six computer-generated maps document changes in the U. S. population growth rate from 1950 to 1975. Data on population change, net migration, natural increase, and per capita income are presented on a county-by-county basis.enincomemapspopulation changeReport