Counties (48 contiguous United States)
Corresponding population cartogram (2000 population)
State boundary
County boundary
State boundary
County boundary
0 200 Km
0 100 Miles
Albers equal area conic projection
Cartography: Didier Willaert, Interface Demography, Brussels Free University (VUB)
Data sources: U.S. Census Bureau, TIGER data for county lines and Census 2000 for population dataCartogram algorithm: Gastner, M.T. & M. E. J. Newman (2004): ‘Generating population density-equalizing maps’, PNAS, 101, 7499-7504