Population Density: We’re Number 147
Indeed, there is room to grow in the United States. Its population density is just 35 persons per square kilometer. Compare that to Bangladesh, with 1,141 persons per square kilometer or Taiwan with 615 persons per square kilometer. The American state of Iowa and Bangladesh are almost equal in land size; but Iowa has 3.1 million persons, while Bangladesh has 168 million persons.
Source: “List of Countries by Population Density,” Wikipedia, https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_by_population_density