https://worldpopulationreview.com/st...growing-states
The bottom lists each State. Growth Rate for 2023, growth since 2010, and 2023 population.
The Boston links has this at the chart if we look closely. ''New Hampshire and Florida were top destinations for people leaving the Bay State, according to IRS change-of-address data from 2019 to 2020.''
They use an IRS change of address to determine the flow, and have data for 2019 and 2020.