Union Membership Data
Buy and sell union membership data data. Membership rates, contract terms, and organizing activity — the collective bargaining landscape data.
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What Is Union Membership Data?
Union membership data tracks the collective bargaining landscape across sectors, industries, and demographics in the United States. This data encompasses union membership rates, union coverage (workers covered by union contracts), membership trends by sector (private vs. public), and organizing activity patterns. The data is collected through ongoing federal labor surveys and provides insights into which industries are gaining or losing union representation, which worker demographics are unionizing, and how contract coverage extends beyond actual membership. Buyers use this data to understand workforce organization, anticipate labor relations challenges, and track shifts in the collective bargaining environment across construction, healthcare, government, and other industries.
Market Data
14.7 million members; 16.5 million with union coverage
Total Unionized Workers (2025)
Source: Center for Economic and Policy Research; Economic Policy Institute
10.0% of employed workers; 11.2% covered by union contracts
Union Membership Rate (2025)
Source: Center for Economic and Policy Research
32.9% membership; 36.4% coverage
Public Sector Union Density (2025)
Source: Center for Economic and Policy Research
5.9% membership; 6.8% coverage
Private Sector Union Density (2025)
Source: Center for Economic and Policy Research
31.1% (up from 29.9% in 2024)
Federal Worker Union Density (2025)
Source: Economic Policy Institute
Who Uses This Data
What AI models do with it.do with it.
Human Resources & Labor Relations Teams
Track unionization trends in their sectors to anticipate labor relations challenges, contract negotiations, and workforce organizing activity. Data helps HR professionals understand regional and sectoral patterns.
Construction & Healthcare Sector Analysts
Monitor organizing activity and membership gains in high-growth sectors. Construction saw 84,000 new unionized workers in 2025; healthcare saw 78,000, making sector-specific membership data critical for workforce planning.
Government & Public Sector Agencies
Track federal, state, and local union membership density and coverage to manage labor relations and understand public employee organization patterns, especially in light of federal sector density reaching 31.1%.
Economic Research & Policy Organizations
Analyze long-term unionization trends, demographic breakdowns, and state-level variation to inform research on worker protections, wage inequality, and collective bargaining effectiveness.
Pricing depends on the proposed terms
We do not have a verified, comparable price for your dataset. Consider the permitted uses, license term, exclusivity, provenance, coverage and quality. A seller asking price is a proposal, not an appraisal or guaranteed sale. Compare prices only when the source, date, currency, unit and license scope are known.
What Buyers Expect
What makes it valuable.valuable.
BLS-Aligned Methodology
Data should be based on or compatible with U.S. Bureau of Labor Statistics survey methods (the Current Population Survey), which interview 15,000 households monthly to estimate unionization.
Sector & Demographic Segmentation
Breakdown of membership by industry (construction, healthcare, government), public vs. private sector, and worker demographics (gender, disability status, foreign-born workers, age groups).
Both Membership & Coverage Metrics
Distinction between actual union members and workers covered by union contracts—a critical gap that has historically ranged 1–3 percentage points and provides fuller picture of collective bargaining reach.
Annual & Sub-Annual Trends
Year-over-year percentage-point changes, quarterly volatility (especially relevant for federal sector monitoring), and multi-year historical context for trend analysis.
Geographic Granularity
State-level union density rates and regional variation to support localized HR and labor relations planning.
Potential applications and organizations
Who's buying.buying.
Monitor membership growth (84,000 net gain in 2025) driven by data center building booms and public works projects; track organizing capacity relative to non-union competitor activity.
Track union membership among healthcare workers (78,000 gain in 2025) and unionization density in a sector adding 500,000 employees annually; plan labor strategy in fastest-growing employment sector.
Monitor federal worker union density (31.1% in 2025, up 1.2 percentage points) and public-sector organizing trends; manage labor relations amid policy shifts.
Use detailed membership and coverage data to model long-term unionization decline (from 20.1% in 1983 to 10.0% in 2025) and track demographic-level shifts in union strength.
FAQ
Common questions.questions.
What is the difference between union membership and union coverage?
Union membership refers to workers who are actual members of a union (10.0% in 2025), while union coverage refers to workers employed under a union contract whether or not they are members (11.2% in 2025). The gap—historically 1–3 percentage points—represents workers who benefit from collective bargaining agreements without being dues-paying members.
How much did unionization grow in 2025?
Union membership grew by 463,000 workers in 2025, with roughly half from the public sector and half from the private sector. The largest private-sector gains were in construction (84,000) and healthcare (78,000). Federal worker unionization rose notably, from 29.9% to 31.1%.
Why is the public sector so much more unionized than the private sector?
Public-sector union density was 32.9% in 2025 versus just 5.9% in the private sector—a gap that has persisted for decades. Public-sector workers historically have had stronger legal protections for organizing and tend to work in roles less vulnerable to outsourcing or automation. Private-sector unionization has declined steadily from 16.5% in 1983 to 5.9% today.
Which states have the highest union density?
Hawaii leads with 24.7% union density, followed by New York at 21.3%. These rates far exceed the national average of 10.0% and reflect stronger organizing traditions and regional labor laws in those states.
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