Is there a way to measure which cities are benefiting, and by how much?
Edit: I can't read. Pittsburgh has only lost 0.7% since 2010: https://www.census.gov/quickfacts/fact/table/pittsburghcityp....
Broader urbanization is much less pronounced and, to the degree it's a trend, it's mostly to what a lot of people here would be more inclined to call suburbs than cities.
Out of curiosity, where did you get that information?
This article claims that the population of Pittsburgh is essentially static:
http://www.post-gazette.com/local/city/2017/05/25/2016-censu...