CitiesEthnic mapsLawsMapping StereotypesPopulation The northeastern megalopolis of the U.S. from Boston to Washington November 4, 2015 Alex The Northeastern megalopolis has a population of 52 million, 17 percent of the US total population. Related Posts:Would you feel comfortable if your child was in a…Land Reclamation in BostonPercentage of Public School Students from Immigrant…The Changing Face of Our World Map: A Journey…Tipping etiquette around the worldThe Most Photographed Food in the U.S.The Geography of Empty Offices: Mapping America's…Noncommunicable diseases