The World's Population, Concentrated

THE WORLD'S POPULATION, CONCENTRATED If the world's 6.9 billion people lived in one city, how large would that city be it it were as dense as... PARIS SAN FRANCISCO 127,930 square miles 397,975 square miles 1,030,751 square kilometers 331,336 square kilometers NEW YORK LONDON 250,404 square miles 648,544 square kilometers 553,745 square miles 1,434,193 square kilometers SINGAPORE HOUSTON 379,069 square miles 981,789 square kilometers 1,769,085 square miles 4,581,910 square kilometers PER SQUARE MILE