Union Membership, Coverage, Density, and Employment:
Private Sector Construction Workers
Year Sample Size Employment (in 1000s) Members (in 1000s) Covered (in 1000s) % Mem %Cov
 
1973 2,670 4,131.8 1,632.8   39.5%  
1974 2,479 4,017.2 1,490.9   37.1%  
1975 2,103 3,464.0 1,284.0   37.1%  
1976 2,208 3,692.9 1,321.9   35.8%  
1977 2,882 3,975.4 1,425.3 1,495.2 35.9% 37.6%
1978 3,030 4,422.3 1,418.7 1,495.2 32.1% 33.8%
1979 3,092 4,563.1 1,451.5 1,548.5 31.8% 33.9%
1980 3,544 4,443.1 1,370.7 1,431.2 30.9% 32.2%
1981 785 4,375.1 1,440.9 1,475.7 32.9% 33.7%
1983 8,053 4,109.0 1,130.7 1,207.0 27.5% 29.4%
1984 8,528 4,503.7 1,060.5 1,115.1 23.5% 24.8%
1985 8,748 4,716.3 1,050.9 1,113.9 22.3% 23.6%
1986 8,817 4,958.8 1,091.9 1,158.0 22.0% 23.4%
1987 8,814 5,052.1 1,060.1 1,122.7 21.0% 22.2%
1988 8,543 5,193.3 1,095.6 1,151.3 21.1% 22.2%
1989 8,629 5,322.2 1,144.8 1,202.8 21.5% 22.6%
1990 8,844 5,199.8 1,072.3 1,137.6 20.6% 21.9%
1991 7,806 4,684.8 977.1 1,034.8 20.9% 22.1%
1992 7,443 4,592.9 904.7 954.1 19.7% 20.8%
1993 7,491 4,702.9 929.4 973.3 19.8% 20.7%
1994 7,416 4,866.7 915.9 966.3 18.8% 19.9%
1995 7,645 5,134.9 908.1 963.4 17.7% 18.8%
1996 7,180 5,387.4 994.2 1,032.7 18.5% 19.2%
1997 7,494 5,739.4 1,067.1 1,117.8 18.6% 19.5%
1998 7,726 5,946.5 1,055.8 1,093.3 17.8% 18.4%
1999 8,154 6,229.6 1,186.9 1,224.0 19.1% 19.6%
2000 8,725 6,665.6 1,219.6 1,268.2 18.3% 19.0%
2001 9,548 6,867.6 1,276.0 1,315.2 18.6% 19.2%
2002 10,085 6,679.5 1,164.7 1,203.7 17.4% 18.0%
2003 10,134 7,126.1 1,139.2 1,187.9 16.0% 16.7%
2004 10,389 7,549.9 1,109.8 1,161.8 14.7% 15.4%
2005 10,982 8,053.1 1,057.1 1,111.5 13.1% 13.8%
2006 11,362 8,444.0 1,097.3 1,146.2 13.0% 13.6%
2007 11,071 8,561.2 1,192.7 1,231.5 13.9% 14.4%
2008 9,914 7,651.6 1,194.9 1,240.6 15.6% 16.2%
2009 8,624 6,613.0 957.8 993.1 14.5% 15.0%
2010 7,899 6,102.6 800.6 838.5 13.1% 13.7%
2011 7,994 6,242.9 874.8 929.2 14.0% 14.9%
2012 7,832 6,204.7 818.9 849.3 13.2% 13.7%
2013 8,089 6,476.8 913.9 966.9 14.1% 14.9%
2014 8,596 6,971.7 968.6 1,023.7 13.9% 14.7%
2015 8,549 7,109.7 940.0 991.5 13.2% 13.9%
2016 8,888 7,490.7 1,038.7 1,095.4 13.9% 14.6%
2017 9,040 7,842.6 1,101.5 1,156.0 14.0% 14.7%
2018 9,068 8,168.0 1,048.6 1,125.0 12.8% 13.8%
2019 8,929 8,348.8 1,054.7 1,132.8 12.6% 13.6%
2020 7,610 7,832.0 992.9 1,049.8 12.7% 13.4%
2021 7,761 8,149.2 1,020.9 1,109.0 12.5% 13.6%
2022 7,691 8,672.7 1,019.3 1,076.8 11.8% 12.4%
2023 7,560 8,918.2 952.6 1,015.8 10.7% 11.4%
Copyright 2024 by Barry T. Hirsch, David A. Macpherson, and William E. Even.  The use of this data requires citation.