In case anyone is curious, I downloaded US Census Bureau data on the population of all incorporated towns and cities in the United States, eg from https://www.census.gov/data/tables/time-series/demo/popest/2...

It appears that the median resident of the United States lives in a town or city of population 18,290 (as of the census date April 1, 2020).

As a quick sanity check, the Wikipedia page https://en.wikipedia.org/wiki/List_of_United_States_cities_b... cuts off at population 100,000 and mentions that > The total 2020 enumerated population of all cities over 100,000 is 96,598,047, representing 29.14% of the United States population

Sure but most large cities aren’t just urban areas. Dallas, Houston, Denver, Phoenix etc are all large cities that you could live in and never have any reason to be near a high rise building.