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Which State Has the Most Labor Unions?

Published in Union Membership Rates 3 mins read

While the exact number of distinct labor unions within each U.S. state is not a commonly tracked metric, Hawaii consistently leads the nation in the percentage of its employed workers who are union members. This union membership rate is often used as a key indicator of a state's overall union presence and influence.

Understanding Union Presence by Membership Rate

When discussing which state has the "most" labor unions, it's often interpreted in terms of the strength and prevalence of unionization among the workforce. The union membership rate provides a clear picture of how many workers in a state are covered by collective bargaining agreements. A higher rate suggests a more unionized workforce and, by extension, a stronger collective labor voice.

According to data from 2023, Hawaii stands out with the highest percentage of unionized workers. This strong union density indicates a significant portion of its employed population benefits from union representation, which can include advantages in wages, benefits, and working conditions.

Top States by Union Membership Rate (2023)

The following table highlights states with the highest rates of union membership:

State Percentage of U.S. employed workers who are union members in 2023
Hawaii 24.1%
New York 20.6%
Washington 16.5%
New Jersey 16.1%

Learn more about union membership rates by U.S. State in 2023.

Hawaii's sustained high union membership rate is often linked to its unique historical context, a significant public sector workforce, and state labor policies that have historically supported unionization efforts.

Factors Influencing Union Density

Several factors contribute to a state's union membership rate, which in turn reflects the overall strength of its labor movement:

  • Industry Composition: States with a large presence in sectors traditionally heavily unionized, such as education, public administration, transportation, and certain manufacturing industries, tend to have higher union membership rates.
  • Historical and Political Climate: A state's labor history, including significant strikes or labor movements, and its political leaning towards labor rights can profoundly impact unionization levels.
  • State Labor Laws: Legislation concerning collective bargaining, "right-to-work" status (which affects union security clauses), and specific provisions for public sector unions play a critical role in facilitating or hindering union growth.
  • Economic Landscape: Broader economic conditions, including unemployment rates and wage stagnation, can influence workers' interest in joining unions for better job security and compensation.

States with high union membership rates, like Hawaii, often experience distinct labor market dynamics, including potentially higher wages and more comprehensive benefits for unionized workers, setting them apart from states with lower union density.