Population This is a list of urban areas in the United States as defined by the United States Census Bureau, ordered according to their 2020 census populations.
An urban area is defined by the Census Bureau as a contiguous set of census blocks that are "densely developed residential, commercial, and other nonresidential areas".
[1] Urban areas consist of a densely-settled urban core, plus surrounding developed areas that meet certain density criteria.
[2][1] Key changes for the 2020 criteria included:[1] Largely as a result of the change in criteria, the proportion of American citizens living in urban areas fell between 2010 and 2020, from 80.7% to 80.0%.
[1] There were 2,644 urban areas identified by the Census Bureau for 2020.