As of early 2017, the US population is just shy of 325 million people, a 130X increase over 241 years. World map with the population density in inhabitants per sq km and other maps and charts around world population and settlement. Overall, there were estimated to be only 2.5 million people living in the original thirteen colonies in 1776, although that number should be taken with a grain of salt since the first census did not occur until 1790. Alternatively, you could show density more abstractly, such as in this compelling map of the Pearl River Delta in China. World map with the population density in inhabitants per sq km and other maps and charts around world population and settlement.
To put those numbers in some perspective, the densest areas in 1775 had slightly over 40 inhabitants per square mile (although density would have been higher in cities), whereas the Boston–Washington Corridor today has a density of over 930 inhabitants per square mile and the entire country has an average density of 91 people per square mile (including Alaska). United Nations projections are also included through the year 2100. While the map maker does not specify, the map likely only includes white colonists in their population figures, thus excluding Slaves and Native Americans.
Population living in areas where elevation is below 5 meters ( of total population) Urban population living in areas where elevation is below 5 meters ( of total. Even back then, what would become the Boston–Washington Corridor was clearly evident. Visualising Population Density Across the Globe This exploratory map shows data from the fantastic Global Human Settlement Layer (GHSL) produced by the European Commission. km of land area) Food and Agriculture Organization and World Bank population estimates. The map above shows the population density of the original thirteen American colonies, the year before they declared independence.