ABC: 9 in 10 Construction Workers in 24 States Are Not Union Members

WASHINGTON, Feb. 25—Associated Builders and Contractors today released an analysis of state union membership data published by unionstats.com, which found that at least 90% of construction workers in 24 states did not belong to a union in 2025. Overall, there were a record 9 million nonunion construction workers compared to 995,000 union members last year, according to a Feb. 18 report from the U.S. Bureau of Labor Statistics. 

The Merit Shop Construction Workforce

“Year after year, data at the national and state level continue to show the supermajority of construction companies choose an employment relationship in a merit-based culture, which is the best way to attract talent and the most productive means to deliver long-lasting, high-quality projects at affordable prices,” said Kristen Swearingen, ABC vice president of government affairs.

“Discriminatory, union-only rules are especially unfair and unworkable in the dozen states where nonunion workers comprise more than 95% of the workforce,” said Swearingen. “Employee choice whether or not to affiliate with unions creates immense value in the marketplace, which is why ABC will continue to oppose government-mandated project labor agreement policies and advocate for freedom for all construction workers to choose how to achieve their career dreams and prosper in a safe and healthy environment.

“ABC urges state policymakers, as well as the Trump administration and Congress, to advance policies that level the playing field, preserve worker choice and address the issues that the construction industry faces, including a worker shortage of 349,000 in 2026, economic uncertainty, immigration policy, inflation and high interest rates,” said Swearingen.

Visit abc.org/economics for the Construction Backlog Indicator and Construction Confidence Index, plus analysis of spending, employment, job openings and the Producer Price Index.

Associated Builders and Contractors is a national construction industry trade association established in 1950 with 67 chapters and more than 23,000 members. Founded on the merit shop philosophy, ABC helps members offer a robust employee value proposition, develop people, win work and deliver that work safely, ethically and profitably for the betterment of the communities in which ABC and its members work. Visit us at abc.org.