Union Membership, Coverage, Density, and Employment:
Federal Workers (excluding postal)
Year Sample Size Employment (in 1000s) Members (in 1000s) Covered (in 1000s) % Mem %Cov
 
1983 5,510 2,416.9 469.3 711.2 19.4% 29.4%
1984 5,362 2,452.7 418.4 642.1 17.1% 26.2%
1985 5,242 2,550.7 417.8 623.1 16.4% 24.4%
1986 4,977 2,530.1 409.5 618.3 16.2% 24.4%
1987 4,946 2,552.5 415.0 607.6 16.3% 23.8%
1988 4,770 2,567.0 442.4 663.0 17.2% 25.8%
1989 4,611 2,509.9 379.5 588.2 15.1% 23.4%
1990 4,811 2,590.9 391.4 626.6 15.1% 24.2%
1991 4,667 2,589.0 409.5 649.0 15.8% 25.1%
1992 4,449 2,541.8 441.1 677.7 17.4% 26.7%
1993 4,408 2,630.3 445.3 672.8 16.9% 25.6%
1994 4,390 2,628.8 508.2 728.8 19.3% 27.7%
1995 4,374 2,561.6 458.2 660.8 17.9% 25.8%
1996 3,686 2,430.7 418.2 595.0 17.2% 24.5%
1997 3,550 2,329.7 396.2 565.3 17.0% 24.3%
1998 3,476 2,360.1 447.5 593.0 19.0% 25.1%
1999 3,520 2,373.2 423.9 588.2 17.9% 24.8%
2000 3,539 2,338.5 406.8 522.0 17.4% 22.3%
2001 3,904 2,409.5 443.2 566.5 18.4% 23.5%
2002 4,185 2,382.3 442.6 569.6 18.6% 23.9%
2003 4,166 2,398.7 444.5 579.1 18.5% 24.1%
2004 4,201 2,463.6 434.8 563.0 17.6% 22.9%
2005 4,328 2,614.0 430.7 573.4 16.5% 21.9%
2006 4,281 2,573.9 448.5 576.3 17.4% 22.4%
2007 4,252 2,617.2 417.7 539.4 16.0% 20.6%
2008 4,414 2,710.4 479.3 604.8 17.7% 22.3%
2009 4,540 2,801.4 504.2 648.5 18.0% 23.2%
2010 4,658 2,992.0 518.8 666.0 17.3% 22.3%
2011 4,515 2,866.9 525.8 670.9 18.3% 23.4%
2012 4,355 2,855.2 498.7 621.0 17.5% 21.7%
2013 4,350 2,828.0 502.4 634.8 17.8% 22.4%
2014 4,279 2,750.4 512.5 629.7 18.6% 22.9%
2015 4,390 2,914.5 552.5 698.2 19.0% 24.0%
2016 4,446 3,004.4 578.8 682.5 19.3% 22.7%
2017 4,398 3,044.1 585.5 721.2 19.2% 23.7%
2018 4,290 3,075.7 559.9 692.1 18.2% 22.5%
2019 4,093 3,155.8 585.7 738.2 18.6% 23.4%
2020 4,021 3,279.5 633.7 755.9 19.3% 23.0%
2021 3,833 3,184.8 580.7 705.1 18.2% 22.1%
2022 3,772 3,355.9 586.6 718.8 17.5% 21.4%
2023 3,665 3,490.2 661.1 795.0 18.9% 22.8%
2024 3,719 3,543.2 656.2 823.7 18.5% 23.2%
Copyright 2025 by Barry T. Hirsch, David A. Macpherson, and William E. Even.  The use of this data requires citation.