As of a June 28, 2021 SCOTUS gave USA transgender washroom rights a huge boost, essentially granting this right within the jurisdiction of the 4th Circuit by declining to hear this appeal.
Gloucester County School Board v. Grimm
https://www.scotusblog.com/2021/06/j...and-bathrooms/
Geography of the 4th Circuit Court of Appeals
https://en.wikipedia.org/wiki/United...Fourth_Circuit