Unions are a critical force in American society, ensuring that everyday Americans can earn decent pay and benefits and have a voice in our democracy. Study after study has shown that unions make our economy and democracy stronger by boosting wages for workers, reducing wage inequality, increasing voter turnout for union and nonunion voters alike, and providing a counterbalance to wealthy interest groups. This is part of a historical tradition of unions playing a powerful role for American workers: Unions helped create the 40-hour workweek, child labor laws, and improvements in health insurance. At their height in 1945, unions represented one-third of all U.S. workers.

Unfortunately, decades of attacks on unions, weak U.S. labor laws, and a changing economy have caused union membership to steadily decline in 2023, unions represented just 10 percent of workers. However, in recent years, the popularity and activity of unions has grown to levels not seen in decades, bolstering their ability to deliver on these benefits.

The growing popularity of unions

Growing numbers of workers are trying to form unions. There was a more than 50 percent jump in union petitions from 2021 to 2022, with a continued increase into 2023. Strike activity has also increased significantly, overwhelmingly led by unionized workers: There were 33 major strikes in 2023 involving 458,900 workers—the largest number of strikes in two decades.


Meanwhile, nearly half of nonunion workers say they would like to join a union, and more than two-thirds of the public support unions. Gen Z, in particular, is the most pro-union generation alive today, even more so than older workers when they were the same age.


Unions are increasingly popular for good reason. New data confirm that unions raise wages and wealth for all workers, while their decline explains the rise in wage inequality. At the same time, unions increase political participation and ensure the middle class is represented across a range of issues.

1. Unions raise wages for workers from every background When workers come together in unions, they can negotiate for higher wages and benefits. Research has consistently demonstrated that unions raise wages for various types of workers. New data on 2023 workers from the “earner study” portion of the Bureau of Labor Statistics’ Current Population Survey (CPS) confirm these findings.

Figure 1 shows the union wage premium—or the percent change in weekly earnings due to union membership—for various types of full-time workers based on the new data. After controlling for factors such as race, gender, age, occupation, and education, among others, the union wage premium for all workers is 10 percent. Thus, on average, workers who join a union can expect to see a 10 percent increase in their weekly earnings specifically, women who join a union can expect a 7.8 percent wage increase. The union wage premium is highest for Hispanic workers (12.0 percent) and workers without a college degree (11.9 percent), meaning union membership can close racial and educational wage gaps. Notably, these figures may underestimate the total impact of unions on all workers’ pay due to the “union threat effect,” which occurs when union workplaces put upward pressure on wages at nonunion companies.