Union Membership, Coverage, Density, and Employment:      
Private Sector Workers            
Year Sample Size Wage At Cap Union Wage Nonunion Wage Unadjusted Union Wage Prem. Adjusted Union Wage Prem.
               
1973 32,430 $3.85 0.1% $4.56 $3.62 25.9% 18.3%
1974 30,887 $4.14 0.2% $4.95 $3.89 27.2% 18.3%
1975 30,368 $4.50 0.3% $5.36 $4.25 26.0% 19.9%
1976 30,631 $4.80 0.3% $5.76 $4.53 27.2% 21.4%
1977 37,202 $5.12 0.4% $6.32 $4.78 32.3% 24.4%
1978 35,875 $5.48 0.5% $6.78 $5.13 32.2% 23.9%
1979 35,549 $6.26 0.6% $7.28 $6.01 21.1% 17.7%
1980 44,562 $6.79 0.8% $7.89 $6.51 21.2% 18.0%
1981 10,207 $6.86 0.9% $8.50 $6.65 27.9% 20.6%
1983 120,987 $7.88 1.8% $9.76 $7.68 27.1% 26.8%
1984 122,823 $8.16 2.3% $10.06 $7.99 25.8% 27.5%
1985 126,122 $8.54 2.7% $10.57 $8.36 26.4% 27.1%
1986 130,886 $8.91 3.2% $10.94 $8.74 25.2% 25.5%
1987 127,542 $9.20 3.7% $11.21 $9.10 23.1% 25.5%
1988 120,798 $9.62 4.3% $11.72 $9.53 23.1% 23.9%
1989 122,988 $10.09 0.6% $12.25 $9.79 25.2% 26.0%
1990 128,278 $10.53 0.8% $12.58 $10.29 22.3% 24.5%
1991 123,941 $10.94 0.9% $12.96 $10.71 21.1% 23.8%
1992 122,075 $11.22 1.0% $13.33 $10.99 21.4% 23.7%
1993 118,415 $11.54 1.1% $13.81 $11.31 22.1% 25.2%
1994 139,220 $12.09 1.3% $14.46 $11.80 22.5% 26.9%
1995 139,323 $12.41 1.4% $14.76 $12.14 21.6% 26.1%
1996 96,785 $12.67 1.5% $15.02 $12.49 20.2% 25.1%
1997 98,951 $13.21 1.8% $15.71 $13.02 20.7% 24.5%
1998 98,742 $13.85 0.7% $16.33 $13.74 18.9% 23.8%
1999 94,565 $14.60 0.8% $16.73 $14.40 16.2% 23.8%
2000 92,870 $15.30 1.0% $17.38 $15.17 14.6% 21.7%
2001 97,146 $16.26 1.1% $18.03 $16.01 12.7% 21.7%
2002 104,726 $16.73 1.3% $18.68 $16.53 13.0% 23.3%
2003 100,366 $17.12 1.3% $19.22 $16.88 13.9% 22.7%
2004 99,157 $17.54 1.5% $19.77 $17.32 14.2% 22.7%
2005 100,888 $18.14 1.6% $20.44 $17.85 14.5% 21.8%
2006 100,630 $18.74 1.8% $21.10 $18.46 14.3% 20.3%
2007 100,549 $19.34 2.0% $21.83 $19.17 13.9% 21.5%
2008 99,298 $20.32 2.3% $22.88 $20.10 13.8% 20.8%
2009 96,206 $20.63 2.4% $23.29 $20.48 13.7% 20.0%
2010 91,303 $20.76 2.6% $23.60 $20.73 13.8% 21.9%
2011 89,466 $21.12 2.7% $23.57 $21.02 12.1% 20.1%
2012 91,016 $21.69 2.9% $24.24 $21.64 12.0% 20.4%
2013 88,375 $22.18 3.2% $24.88 $22.11 12.5% 20.5%
2014 87,472 $22.69 3.4% $25.22 $22.41 12.5% 21.1%
2015 83,580 $23.63 3.8% $25.81 $23.29 10.8% 19.0%
2016 84,975 $24.59 4.2% $26.46 $24.17 9.5% 20.8%
2017 84,038 $25.32 4.4% $27.80 $24.84 11.9% 21.3%
2018 81,594 $26.64 4.9% $28.69 $26.09 10.0% 20.7%
2019 78,799 $27.85 5.4% $29.83 $27.22 9.6% 17.2%
2020 69,844 $30.36 6.4% $31.50 $29.58 6.5% 15.4%
2021 69,221 $31.76 7.0% $31.93 $30.78 3.7% 13.3%
2022 69,523 $34.06 8.0% $34.02 $33.08 2.8% 14.8%
2023 67,970 $36.07 5.7% $35.98 $35.01 2.7% 14.2%
2024 70,345 $37.77 1.2% $38.31 $36.80 4.1% 14.6%
Beginning in April 2023, the CPS gradually phased in dynamic topcoding that assigned anyone  
in the top 3% of the weekly earnings distribution a value that matches the average within the  
top 3 percent.  The estimate of the percent at the cap excludes those who are assigned a  
dynamic top code.   By the end of 2024,  no earnings are capped at $2885.    
Copyright 2025 by Barry T. Hirsch, David A. Macpherson, and William E. Even.