Union membership continues half-century decline
The Rise and Decline of Organized Labor in the United States
American unions membership declines as public support fluctuates
Share of union workers in the U.S. falls to a record low in 2019
What Is the Unemployment Rate? Rates by State
The Middle Class Continues to Struggle as Union Density Remains
Income Inequality
Labor Movement
Middle-Class Decline Mirrors The Fall Of Unions In One Chart
Union enrollment declined for decades but union workers still earn
Union membership declines in 2010 : The Economics Daily : U.S.
Labor costs in the auto industry : The Economics Daily : U.S.
Bureau of Labor Statistics Report Shows Union Membership Dropped