I suspect DC is an outlier because being the seat of the US Fed probably creates a dynamic like a college town with a lot of people moving in for a while to do something than leaving. There’s probably a lot of people coming with no intent to stay for the long haul.

I’m surprised home ownership is so high in California since it seems like you need an exit event to afford a down payment in many of its cities. Lots of those owners must be people who bought before the 2000s.