Someone compiled a list (and I don’t necessarily recommend clicking on that link given that the website kind of sucks) of U.S. cities with declining populations. Here’s the list:
7. Rochester, NY
6. Pittsburgh, PA
5. Dayton, OH
4. Buffalo, NY
3. Cleveland, OH
2. Flint, MI
1. New Orleans, LA
The person who wrote the list implies that the decline of manufacturing is what has caused these city populations to decline. And that’s partially true, but what’s not written is that all of these cities have a disproportionate percentage of blacks. Pittsburg is the least-black city on the list; the Wikiepedia article says that Pittsburg was 27% black in 2000. The other cities on this list are closer to 50% black. I think the lesson here is that no one wants to live near black people, or create new businesses in cities with lots of black people. (Except, of course, for New York City, which is the city where every educated white person wants to be despite being only 35% non-Hispanic white.)
A more interesting city is Scranton, Pennsylvania, which is losing population despite being one of the nation’s whitest cities, clocking in at 94% white. What’s going on here?
Only 19% of Scranton residents have a bachelor’s degree. Across the entire country, 30% of whites have bachelor’s degrees. The whites who live in Scranton are disproportionately stupid low-class whites. If they behave like the guidos in Staten Island, I can understand why no one wants to live there.
In Boise, ID, a white city with a growing population, 36% of the population has a bachelor’s degree.
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Commenters have validly pointed out that a greater metropolitan area can have different demographics then the core city.
But regarding the Scranton-Wilkes Barre metro area, it's still not an area you ever hear about young college-educated people flocking to. It's mostly known for the Dunder Mifflin Paper Company.