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Union Membership Historical Table for Wisconsin

Union affiliation of employed wage and salary workers, Wisconsin, annual averages, 1989–2025 (numbers in thousands)
Year	Total employed	Members of unions(1)		Represented by unions(2)
Year	Total employed	Total	Percent of employed	Total	Percent of employed
1989	2,183	456	20.9	484	22.2
1990	2,190	448	20.4	471	21.5
1991	2,174	453	20.8	484	22.2
1992	2,219	440	19.8	472	21.3
1993	2,289	443	19.3	472	20.6
1994	—	—	—	—	—
1995	2,429	429	17.7	465	19.1
1996	2,492	470	18.8	493	19.8
1997	2,493	468	18.8	499	20.0
1998	2,513	470	18.7	492	19.6
1999	2,505	452	18.1	476	19.0
2000	2,562	456	17.8	485	18.9
2001	2,592	417	16.1	452	17.4
2002	2,549	397	15.6	418	16.4
2003	2,613	414	15.9	438	16.8
2004	2,597	414	16.0	439	16.9
2005	2,551	410	16.1	438	17.2
2006	2,587	386	14.9	415	16.1
2007	2,631	376	14.3	405	15.4
2008	2,642	396	15.0	422	16.0
2009	2,528	385	15.2	400	15.8
2010	2,508	355	14.2	380	15.1
2011	2,538	339	13.3	358	14.1
2012	2,605	293	11.2	312	12.0
2013	2,569	317	12.3	337	13.1
2014	2,626	306	11.7	327	12.5
2015	2,682	223	8.3	253	9.4
2016	2,696	219	8.1	244	9.0
2017	2,778	230	8.3	250	9.0
2018	2,700	219	8.1	233	8.6
2019	2,698	218	8.1	245	9.1
2020	2,592	227	8.7	264	10.2
2021	2,705	215	7.9	251	9.3
2022	2,648	187	7.1	212	8.0
2023	2,761	205	7.4	232	8.4
2024	2,819	180	6.4	196	6.9
2025(3)	2,691	173	6.4	202	7.5
Footnotes: (1) Data refer to members of a labor union or an employee association similar to a union. (2) Data refer to both union members and workers who report no union affiliation but whose jobs are covered by a union or an employee association contract. (3) 2025 annual estimates are 11-month averages that exclude October. Data for October 2025 were not collected due to the federal government shutdown.
Note: Data refer to the sole or principal job of full- and part-time wage and salary workers. All self-employed workers are excluded, both those with incorporated businesses as well as those with unincorporated businesses. Updated population controls are introduced annually with the release of January data. Dashes indicate data not available. Source: Current Population Survey The current population survey is a monthly survey of households conducted by the Bureau of the Census for the Bureau of Labor Statistics.

Midwest Information Office

Union Membership Historical Table for Wisconsin