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The website was recently updated with the latest state-specific union membership data based on the January release of the U.S. Bureau of Statistics’ 2020 nationwide data on unionization rates. These data, which can be found in Table II of the website, are compiled from the monthly household Current Population Survey using BLS methods. The site provides private construction percentages broken down by state, as well as numbers for certain metropolitan areas. Historical unionization data dating back to 1983 can also be accessed on the website.

Nationally, the percentage of workers in the construction industry who chose to join a union in 2020 stood at 12.7%. Some highlights from the data show:

  • 29 states and Washington, D.C., have construction unionization rates lower than the national average.
  • At least 7 out of 10 workers in every state opted not to join a construction trades union in 2020. 
  • The nonunion construction workforce remained steady or increased in a majority of the states.

Additional information on the national unionization rates across all industries can be found on the BLS website, including the news release and full report. Please contact Nick Steingart, ABC National’s manager of state and local affairs, with questions regarding issues related to union membership nationally, for your region or state.