As 2020 was a serious outlier I am sticking with U.S. states by net domestic migration (From July 1, 2018 to July 1, 2019):
Net domestic migration rate per 1,000 inhabitants: Alaska −12.96, Hawaii −9.76, New York −9.29, Illinois −8.28, Connecticut −6.19, Louisiana −5.60, New Jersey −5.51, California −5.15, skipping several places Delaware 7.15, South Carolina 10.30, Arizona 12.50, Nevada 14.03, Idaho 15.31. https://en.wikipedia.org/wiki/List_of_U.S._states_and_territ...
It’s the territories that are seeing the fastest changes. American Samoa –26.1, Guam –11.0, Northern Mariana Islands –15.4, Puerto Rico –14.1, U.S. Virgin Islands –7.5