The United States has never had a primate city at the national scale because the United States is vast in terms of area and large cities are distributed across the country
it was part of the British colonial empire and many former colonial cities do not apply to this model
many primate cities are found in developed countries and the United States is developing
Washington, D. C. dominates the United States in terms of population and influence
there is a disproportionate amount of resources within cities in the United States