Union Membership, Coverage, Density, and Employment:
All Wage and Salary Workers
Year	Sample Size	Employment (in 1000s)	Members (in 1000s)	Covered (in 1000s)	% Mem	%Cov
1973	49,095	75,519.3	18,088.6		24.0%
1974	48,245	77,101.1	18,176.5		23.6%
1975	46,488	75,703.9	16,778.3		22.2%
1976	47,648	78,776.9	17,403.0		22.1%
1977	57,191	81,334.1	19,335.1	21,534.6	23.8%	26.5%
1978	57,321	84,966.1	19,548.4	21,897.5	23.0%	25.8%
1979	58,080	87,116.6	20,986.1	23,540.1	24.1%	27.0%
1980	68,594	87,479.5	20,095.3	22,493.4	23.0%	25.7%
1981	15,433	89,538.0	19,137.3	21,453.1	21.4%	24.0%
1983	173,932	88,289.5	17,717.4	20,532.1	20.1%	23.3%
1984	177,248	92,194.2	17,339.8	19,931.5	18.8%	21.6%
1985	180,232	94,520.5	16,996.1	19,358.1	18.0%	20.5%
1986	179,147	96,902.6	16,975.2	19,277.8	17.5%	19.9%
1987	180,434	99,302.7	16,913.1	19,051.0	17.0%	19.2%
1988	173,118	101,407.4	17,001.7	19,241.3	16.8%	19.0%
1989	176,411	103,479.6	16,960.5	19,197.6	16.4%	18.6%
1990	185,030	104,875.5	16,776.0	19,105.1	16.0%	18.2%
1991	179,560	103,722.6	16,611.8	18,789.9	16.0%	18.1%
1992	176,846	104,668.3	16,418.2	18,578.5	15.7%	17.7%
1993	174,595	106,101.3	16,627.5	18,682.4	15.7%	17.6%
1994	170,804	107,987.8	16,740.3	18,842.5	15.5%	17.4%
1995	170,307	110,038.1	16,359.6	18,346.3	14.9%	16.7%
1996	152,190	111,960.3	16,269.4	18,158.1	14.5%	16.2%
1997	154,955	114,533.0	16,109.9	17,923.0	14.1%	15.6%
1998	156,990	116,729.9	16,211.4	17,918.3	13.9%	15.4%
1999	159,378	118,963.5	16,476.7	18,182.3	13.9%	15.3%
2000	161,126	120,785.6	16,258.2	17,944.1	13.5%	14.9%
2001	171,533	120,707.6	16,288.8	17,878.1	13.5%	14.8%
2002	184,137	119,979.2	15,978.7	17,501.6	13.3%	14.6%
2003	180,830	122,357.9	15,776.0	17,448.4	12.9%	14.3%
2004	177,858	123,553.9	15,471.6	17,087.3	12.5%	13.8%
2005	179,148	125,889.3	15,685.4	17,223.4	12.5%	13.7%
2006	178,661	128,237.2	15,359.1	16,860.2	12.0%	13.1%
2007	177,023	129,767.0	15,670.3	17,243.3	12.1%	13.3%
2008	174,897	129,377.2	16,097.5	17,760.6	12.4%	13.7%
2009	169,727	124,489.9	15,327.3	16,903.6	12.3%	13.6%
2010	167,828	124,073.0	14,715.1	16,289.5	11.9%	13.1%
2011	166,259	125,210.1	14,754.7	16,281.0	11.8%	13.0%
2012	166,084	127,603.2	14,349.4	15,905.9	11.2%	12.5%
2013	165,878	129,136.6	14,515.8	16,016.2	11.2%	12.4%
2014	167,074	131,452.8	14,569.9	16,142.4	11.1%	12.3%
2015	165,282	133,770.5	14,786.3	16,432.8	11.1%	12.3%
2016	165,808	136,131.9	14,549.6	16,264.6	10.7%	11.9%
2017	163,781	137,912.9	14,811.5	16,436.1	10.7%	11.9%
2018	159,855	140,129.2	14,740.2	16,374.4	10.5%	11.7%
2019	154,727	141,766.4	14,566.7	16,374.9	10.3%	11.6%
2020	133,671	132,205.3	14,250.2	15,935.8	10.8%	12.1%
2021	134,177	136,420.8	14,003.6	15,795.4	10.3%	11.6%
2022	129,714	141,698.5	14,280.1	15,995.9	10.1%	11.3%
2023	125,755	144,567.3	14,415.2	16,186.3	10.0%	11.2%
Copyright 2024 by Barry T. Hirsch, David A. Macpherson, and William E. Even.  The use of this data requires citation.