I noticed some of the network and cable news shows discussing this today:
Rudest Cities in America
NYC wins hands down, followed by L.A, D.C., Chicago, and Boston. No big shock here although it considers the aggregate and we all know there are innumerable individual exceptions. Some New Yorkers responded by pointing toward New Jersey. To me it's more that you've got 9 million people crammed into a small area and folks are busy. I guess.
https://www.kron4.com/news/national/the-rudest-city-in-america-is/
Internationally was not a much of a surprise, either: Moscow, Newark lol, St. Petersburg. A coworker who taught in Moscow for three years said that while he agreed with the initial perception, that once you made some friends the perspective changed dramatically.
Friendliest cities:
San Miguel de Allende, Mexico; Santo Domingo, Dominican Republic; Cork, Galway, Queenstown, Adelaide, and another couple of cities in Mexico. Somehow none of this came as a big surprise, either. https://www.cntraveler.com/galleries/2015-08-14/the-2015-friendliest-and-unfriendliest-cities-in-the-world
Friendliest cities in the U.S. contained the usual numerous suspects in the South, like Savannah, Greenville, Chattanooga, Columbia, and Nanchez, Mississippi. Bend, Oregon and Park City, Utah were also up there.
Part of the fun of travel is to experience exceptions to stereotypes, and being from West Virginia I can confirm there is some truth to what you've probably heard although more nuanced than the "bitter clingers to religion and guns" or "toothless hicks" comments. I mean, there is plenty of that, too, but you won't find more immediately open and friendly people. You don't have to "get to know" us first. A little like Liverpool.
From Psychology Today:
“Our ability to stereotype people is not some sort of arbitrary quirk of the mind, but rather it's a specific instance of a more general process, which is that we have experience with things and people in the world that fall into categories and we could use our experience to make generalizations of novel instances of these categories. So everyone here has a lot of experience with chairs and apples and dogs and based on this, you could see these unfamiliar examples and you could guess—you could sit on the chair, you could eat the apple, the dog will bark.”
Second, contrary to popular sentiment, stereotypes are usually accurate. (Not always, to be sure. And some false stereotypes are purposefully promoted in order to cause harm. But this fact should further compel us to study stereotype accuracy well so that we can distinguish truth from lies in this area).
https://www.psychologytoday.com/us/blog/insight-therapy/201809/stereotype-accuracy-displeasing-truth