[Excerpt] This Spotlight on Statistics examines historical trends in union membership among employed wage and salary workers. It also examines union membership by a variety of demographic characteristics

Dunn, Megan

Walker, James

English

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Cornell University ILR School 
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Federal Publications Key Workplace Documents 
9-2016 
BLS Spotlight on Statistics: Union Membership In The United 
States 
Megan Dunn 
Bureau of Labor Statistics 
James Walker 
Bureau of Labor Statistics 
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BLS Spotlight on Statistics: Union Membership In The United States 
Abstract 
[Excerpt] This Spotlight on Statistics examines historical trends in union membership among employed 
wage and salary workers. It also examines union membership by a variety of demographic 
characteristics. 
Comments 
Suggested Citation 
Dunn, M., & Walker, J. (2016). BLS spotlight on statistics: Union membership In the United States. 
Washington, D.C.: U.S. Department of Labor, Bureau of Labor Statistics. 
This article is available at DigitalCommons@ILR: https://digitalcommons.ilr.cornell.edu/key_workplace/1766 
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 1
SEPTEMBER 2016
Union Membership In The United States
Megan Dunn and James Walker
Union membership has declined steadily since 1983, the earliest year for which strictly comparable data are available. 
Even private-sector industries with a relatively high concentration of union members, such as transportation and 
manufacturing, have experienced declining membership rates. In contrast, union membership rates in the public 
sector, which are much higher than in private industries, have held fairly steady since the early 1980s. The union 
membership rate is the proportion of employed wage and salary workers who are union members.
This Spotlight on Statistics examines historical trends in union membership among employed wage and salary 
workers. It also examines union membership by a variety of demographic characteristics.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 2
Union membership rate in 2015 about half the 1983 rate
The number of employed union members has declined by 2.9 million since 1983. During the same time, the number 
of all wage and salary workers grew from 88.3 million to 133.7 million. Consequently, the union membership rate 
was 20.1 percent in 1983 and declined to 11.1 percent in 2015.
In 2009, there was a sharp decline in the number of workers overall and in the number of union members. The 
number of wage and salary workers declined by 4.9 million from 2008 to 2009, and the number of employed union 
members fell by 771,000. However, the union membership rate was 12.3 percent in 2009, essentially unchanged from 
12.4 percent in 2008.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 3
Number of union members about evenly split between the private and 
public sector in 2015
Through the years, there has been a long term decline in the number of union members in the private sector. In 2015, 
there were 7.6 million union members in the private sector, 4.4 million fewer than in 1983. Public-sector union 
membership, however, has remained fairly constant over time; in 2015, there were 7.2 million public-sector union 
members, 1.5 million more than in 1983.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 4
Union membership rate highest in local government
In 2015, public-sector workers had a union membership rate of 35.2 percent, more than five times higher than that of 
private-sector workers (6.7 percent). While the unionization rate for the public sector has remained relatively steady 
over time, the rate for the private sector has declined from 16.8 percent in 1983 to 6.7 percent in 2015.
Within the public sector, local government had the highest union membership rate at 41.3 percent in 2015, followed 
by state government at 30.2 percent and federal government at 27.3 percent. Local government has a large number of 
union members working in highly unionized occupations such as teachers, police officers, and firefighters.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 5
Industries with large numbers of union members experienced declining 
rates too
In the private sector, five industries accounted for 81 percent of union members in 2015. Of these industries, private 
education and health services had the largest number of union members at 1.9 million; this includes a large number of 
union members who work in private hospitals, like nurses, and private school employees (public schools and 
hospitals are excluded). Manufacturing (1.4 million), transportation and utilities (1.1 million), construction (940,000), 
and wholesale and retail trade (871,000) also had relatively large numbers of union members in 2015. For 
comparison, the sixth largest industry, leisure and hospitality had 389,000 union members.
Transportation, which has a relatively high union membership rate, declined by 6.7 percentage points from 2000 to 
2015. Union membership rates in construction, manufacturing, and wholesale and retail trade also declined. In 
contrast, the unionization rate in education and health services edged up by 0.8 percentage point. Industry data on a 
comparable basis are available back to 2000.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 6
New York had highest union membership rate, South Carolina lowest, in 
2015
Thirty states and the District of Columbia had union membership rates below that of the U.S. average, 11.1 percent, 
and 20 states had rates above it. In 2015, New York continued to have the highest union membership rate at 24.7 
percent; Hawaii was the only other state to have a union membership rate above 20 percent in 2015, at 20.4 percent. 
Five states had union membership rates below 5.0 percent in 2015, with South Carolina having the lowest rate (2.1 
percent). The next lowest rates were in North Carolina (3.0 percent) and Utah (3.9 percent).
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 7
Union members’ median weekly earnings are higher than earnings of 
nonunion workers
In 2015, full-time wage and salary workers who were union members had median usual weekly earnings of $980, 
while nonunion workers had median weekly earnings of $776, or 79 percent of union members’ earnings. Since 1983, 
nonunion workers’ earnings have remained just under 80 percent of union members’ earnings. In addition to coverage 
by a collective bargaining agreement, this earnings difference reflects a variety of influences, including variations in 
the distributions of demographic characteristics among union members and nonunion workers by age, occupation, 
industry, firm size, or geographic region.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 8
Workers ages 45 to 64 have highest membership rates
In 2015, union membership rates were highest among workers ages 45 to 64—13.6 percent for those ages 45 to 54 
and 14.3 percent for those ages 55 to 64. Nearly half of all union members were between 45 and 64 years old in 2015, 
but only about one-third of nonunion workers belonged in these age groups. Workers ages 45 to 64 were heavily 
represented in the manufacturing and transportation industries, which also had relatively high unionization rates.
The lowest union membership rate was among workers ages 16 to 24 (4.4 percent). Workers ages 16 to 24 made up a 
smaller share of union members than nonunion workers.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 9
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 10
Union membership rate highest for Black workers
In 2015, Black workers had a union membership rate of 13.6 percent, compared with 10.8 percent for Whites, 9.8 
percent for Asians, and 9.4 percent for Hispanics. The high unionization rate for Blacks partially reflects their heavy 
representation in the public sector: in 2015, Black workers accounted for 11.7 percent of total employment but 15.3 
percent of government employment.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 11
Men’s union membership rate has fallen faster than women’s
In 1983, men's union membership rate was nearly double women's membership rate. Over time, the membership rate 
for men has declined noticeably faster than the rate for women. By 2015, the rates nearly met, with men's rate at 11.5 
percent and women's at 10.6 percent. This compares with 24.7 percent for men and 14.6 percent for women in 1983.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 12
Most private-sector union members are men; most public-sector members 
are women
There were more women union members working in the public sector than in the private sector in 2015. Women 
made up the majority of public-sector union members, but only about one-third of private-sector union members.
Local government employed the most union members in the public sector. In local government, women accounted for 
roughly 6 in 10 union members, partially reflecting the large number of women employed as public-school teachers, a 
highly unionized occupation.
U.S. BUREAU OF LABOR STATISTICS Spotlight on Statistics
Page 13
More information
Megan J. Dunn and James A. Walker are economists in the Office of Employment and Unemployment Statistics, U.S. 
Bureau of Labor Statistics. You can contact them at dunn.megan@bls.gov and walker.james@bls.gov.
 
Information on union membership has been collected on a regular basis in the Current Population Survey since 1983. 
The CPS is a survey of about 60,000 households that provides data on employment and unemployment for the 
nation’s civilian noninstitutional population ages 16 and older. For more information, visit https://www.bls.gov/cps/
lfcharacteristics.htm#union.
Note: Data in this Spotlight on Statistics are the latest available when published. Internet links may lead to more 
recent data.
General Information: (202) 691-6378
Media Contact: (202) 691-5902


BLS Spotlight on Statistics: Union Membership In The United States

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