Recent RTW-adopting states have seen large decline in union membership: Percentage point change in share of workers who are members of a union between 2010 and 2022

Change in membership, 2010–2022
Pre-2010 RTW -0.9
Post-2010 RTW -3.8
Non-RTW -1.7


Source: EPI analysis of Economic Policy Institute. 2023. Current Population Survey Extracts, Version 1.0.38,

View the underlying data on