[Yuri]

For some reason, Los Angeles was brought alone though. LA County had 936k inh. in 1920. Maybe a 700k de facto "metropolitan district"?

About Scranton-Wilkes, I remember when I was teenager, looking into the US stats, making my tables, and I remember how I find shocking the size of Scranton-Wilkes, Wheeling-Steubenville. Rust Belt arrived there 100 years ago.

Interestingly, after declining between 1930-2000, Scranton-Wilkes resumed their growth since then: 560k (2000), 563k (2010), 567k (2020). I need to check later, but if I remember correctly they peaked at almost 800k (current definition). Maybe New York exurbs arriving there? Pittsburgh-like rehabilitation?

Wheeling-Steubenville, on the other hand, are still in free fall. No signs of any recovery. I guess they'll just disappear.