The most highly unionized part of the U.S. workforce is the: government sector.
The U.S. Bureau of Labor Statistics today announced that in 2021, the number of wage and salary workers who were union members decreased further (-241,000) to 14.0 million, and the percentage of those who were union members—the union membership rate—was 10.3 percent. The rate is lower than it was in 2020, when it was higher due to a disproportionately significant reduction in the total number of nonunion employees relative to the decline in the number of union members. In 2020, the rate was 10.8 percent. The rate of unionisation in 2021 will be 10.3%, the same as in 2019. In 1983, the first year for which comparable union data are available, there were 17.7 million union employees and a 20.1 percent union membership rate.
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