I don't have access to the full article in the Bizjournals link below but my google search did say that the DC area had the biggest increase over the past years. I did find this study from 10 years ago and DC was already very high along with California metros. I met LA people who would wake up at 4 am to drive from Antelope valley (Palmdale) to get to their job in Orange County; I met one DC person who lived near Hagerstown and worked in DC, but was proud of her 5000 sf house. Had co-workers who worked in DC and lived in Fredericksburg, VA, and Martinsburg, WV. Even had a co-worker who worked in DC and lived in Gettysburg, PA partly because she had several horses. Even heard of one or two people who lived in North Carolina and worked in DC 2-3 days a week...
https://www.bizjournals.com/sanjose/...hot-spots.html
https://www.census.gov/content/dam/C...-03_poster.pdf