Trade union membership has experienced a significant decline in the United States. Back in 1983, the membership rate
was 20.1 percent and they fell to just 10.5 percent by 2018. Today, there is a significant difference on membership between states and a total of 29 (and the District of Columbia) have membership rates below that 10.5 percent average.
According to the Bureau of Labor Statistics
, Hawaii had the highest rate of union membership in 2018 at 23.1 percent, followed by New York with 22.3 percent and Washington's 19.8 percent. The two Carolinas were bottom for the bottom of the membership league with just 2.7 percent each in 2018 while Utah was third from bottom with 4.1 percent.