Union Membership, 2012

Source: John Schmitt and Janelle Jones, Center for Economic and Policy Research, January 17, 2013

The BLS “Union Membership” numbers for 2012 will be released on January 23rd at 10 a.m. Using data from the Current Population Survey (CPS), we have compiled advance estimates for union membership and coverage for 2012. These estimates are based on the full year of 2012 data and should be very close (within 0.1 percentage point) of published membership and coverage rates. As of January 2011, the publicly available CPS data use a slightly different weighting scheme than the internal version of the data used at the BLS. As a result, our estimates of the numbers of unionized workers will differ slightly from the final published numbers. (According to the BLS: “…estimates generated using the public use files should be similar but will rarely exactly match the estimates produced by BLS.”)