Union Membership and Coverage Database from the CPS
The Union Membership and Coverage Database, available at www.unionstats.com, is an Internet data resource providing private and public sector labor union membership, coverage, and density estimates compiled from the Current Population Survey (CPS), a monthly household survey, using BLS methods. Economy-wide estimates are provided beginning in 1973; estimates by state, detailed industry, and detailed occupation begin in 1983; and estimates by metropolitan area begin in 1986. The Database, constructed by Barry Hirsch (Andrew Young School of Policy Studies, Georgia State University) and David Macpherson (Department of Economics, Trinity University), is updated annually.
To access union tables, click on links in the left-side index
Use of figures from the Database requires citation.
A description of the Database is provided in the paper below, available in pdf.
Barry T. Hirsch and David A. Macpherson, "Union Membership and Coverage Database from the Current Population Survey: Note," Industrial and Labor Relations Review, Vol. 56, No. 2, January 2003, pp. 349-54. (in pdf)
Union data compilations from the 2012 CPS posted January 26, 2013
Note: CPS sample sizes (denoted by "Obs") are very small for some cells. Use union estimates cautiously.
CPS Documentation Files and Links:
Additional Labor Union Databases:
State Union Density in the U.S., 1964-2012 (from Monthly Labor Review, nonagricultural employment)
New Mappings of Union Membership and Density, 3-yr moving averages of UnionStats national & state data, from Colin Gordon (University of Iowa)
Newer Metropolitan area figures showing employment, union membership, and density from UnionStats. Colin Gordon (University of Iowa)
Author home pages and e-mail:
© 2002, 2013 by Barry T. Hirsch and David A. Macpherson. Use of data requires citation.