Union Membership, Coverage, Density, and Employment:
Postal Service Workers
Year	Sample Size	Employment (in 1000s)	Members (in 1000s)	Covered (in 1000s)	% Mem	%Cov
1983	1,431	705.2	523.3	588.7	74.2%	83.5%
1984	1,398	719.8	532.3	596.3	73.9%	82.8%
1985	1,422	725.1	539.0	599.7	74.3%	82.7%
1986	1,552	824.3	599.9	660.0	72.8%	80.1%
1987	1,615	869.8	645.3	707.6	74.2%	81.4%
1988	1,485	872.5	650.1	710.2	74.5%	81.4%
1989	1,478	896.6	657.0	715.3	73.3%	79.8%
1990	1,542	869.2	670.4	726.3	77.1%	83.6%
1991	1,512	865.5	637.4	696.8	73.6%	80.5%
1992	1,431	825.4	595.5	647.6	72.1%	78.5%
1993	1,435	849.8	606.5	669.0	71.4%	78.7%
1994	1,430	889.2	673.0	734.6	75.7%	82.6%
1995	1,384	885.4	658.8	712.3	74.4%	80.5%
1996	1,153	852.8	621.5	682.3	72.9%	80.0%
1997	1,206	887.2	634.0	701.0	71.5%	79.0%
1998	1,228	908.8	657.2	705.9	72.3%	77.7%
1999	1,229	891.0	623.4	686.4	70.0%	77.0%
2000	1,214	894.8	626.4	663.9	70.0%	74.2%
2001	1,252	870.7	591.4	631.0	67.9%	72.5%
2002	1,396	873.7	614.9	655.4	70.4%	75.0%
2003	1,315	848.2	559.3	616.9	65.9%	72.7%
2004	1,248	834.5	549.9	590.5	65.9%	70.8%
2005	1,204	812.7	523.6	560.7	64.4%	69.0%
2006	1,174	807.5	511.4	562.5	63.3%	69.7%
2007	1,122	805.9	498.3	539.9	61.8%	67.0%
2008	1,139	831.9	514.7	562.6	61.9%	67.6%
2009	1,092	792.4	500.6	543.7	63.2%	68.6%
2010	976	678.1	465.2	488.2	68.6%	72.0%
2011	975	699.5	476.8	512.8	68.2%	73.3%
2012	918	695.9	458.2	493.1	65.8%	70.9%
2013	880	683.9	428.5	459.4	62.7%	67.2%
2014	862	655.4	424.7	446.7	64.8%	68.2%
2015	814	671.3	426.1	460.8	63.5%	68.6%
2016	822	666.0	426.1	460.0	64.0%	69.1%
2017	750	609.5	386.0	409.5	63.3%	67.2%
2018	719	627.8	414.8	434.1	66.1%	69.2%
2019	719	636.3	386.2	417.5	60.7%	65.6%
2020	682	609.0	378.6	408.9	62.2%	67.1%
2021	645	629.0	369.6	403.4	58.8%	64.1%
2022	595	625.9	383.8	403.7	61.3%	64.5%
2023	559	619.0	370.6	398.1	59.9%	64.3%
Copyright 2024 by Barry T. Hirsch, David A. Macpherson, and William E. Even.  The use of this data requires citation.