Earlier quoted context omitted.
Interesting. Applies to Boston too - to the north are the rapidly gentrifying yuppie suburbs of Cambridge, Somerville and Medford, while to the south are the more depressed areas of Roxbury, Dorchester and Mattapan. Same for the non-San Jose parts of Silicon Valley: Palo Alto and Mountain View are ritzier than neighboring Sunnyvale and Santa Clara. I don't know enough about San Jose itself to say, nor about San Franc…
Not necessarily true about NYC. Pre mass-transit, wealthy citizens of Manhattan vacationed on the northern part of the island. During the early 20th century, as the subway system and metro-north were developed, these same people migrated to the north, or what is now referred to as Westchester. While westerlies may have caused dislocation during a certain time period, most major cities have experienced other events wh…
In other words, the most northern parts of the island are also the most eastern, so it currently fits the pattern quite well.