Size does not matter any more when you encounter "cities" that are more or less county seats of any size
They are usually pretty dead and they are the center of a web of depopulated towns and rural enclaves
The only size that matters any more is a square mile where you can gather 10,000 people and have all the elements of a city within walking distance
Squares every 200 feet or so, four graded levels, no more than a mile by foot from anywhere. fully cyber-enabled, big screens that are public, schools that are cyberfied and small. jobs that go with a recalibration of everything so that a person can earn a decent living serving the community
We think so wrong about size that it almost makes one cry
See also:
ShortFormContent at Blogger: We lack anything close to an ideal distribution of communities and population: