The biggest losers were Los Angeles County, California (-90,704); Cook County, Illinois (-68,314); Queens County, New York (-50,112); Kings County, New York (-46,970); and Bronx County, New York (-41,143).

LA, Chicago, and NYC lost more, proportionally speaking. As usual, we are beholden to nation-wide trends.

Also, this data is to be taken with a grain of salt. They say we lost population from July '21 to July '22, this article states that we gained population from April '21 to April '22: https://localtoday.news/ny/philly-attracts-residents-from-suburbs-and-brooklyn-cellphone-data-shows-5778.html

"They found that while Philadelphia steadily lost population during the first year and a half of the pandemic, the picture has been more mixed since mid-2021. Between April 2021 and April 2022, the city’s population grew by 0.8%, while Brooklyn, Chicago and San Francisco have not experienced a single month of population increase since March 2020."