Economy & Labor

Labor Unions & Worker Power

9.9%and falling

Share of U.S. workers in a union today — down from roughly one in three in the 1950s.

One in three workers carried a union card in the 1950s. Now it's one in ten. Since the Wagner Act of 1935 guaranteed the right to organize, union membership climbed to roughly 35% of workers in the mid-1950s — and has fallen ever since, to around 10% today, even as a recent organizing wave and 60-year-high public approval suggest a possible turn. The decline tracks closely with rising inequality and stagnant middle wages. This is the long arc of organized labor: what drove its rise and fall, how it shapes wages and politics, and why 'union' means very different things to different coalitions.

Union membership rate, 2024

9.9%

down from ~35% mid-1950s · BLS, CRS

Public vs private density

32% / 6%

public is 5× private · BLS 2024

Union wage premium

+13.6%

regression-adjusted · EPI (raw median +17%)

Public approval of unions

70%

near a 60-yr high · Gallup 2024

Right-to-work states

Michigan repealed in 2024 · NRTW

The basic idea

A single worker negotiating with an employer has almost no leverage — the company sets the wage and the worker takes it or leaves. A union changes the math by letting workers negotiate together. When a majority at a workplace vote to unionize, federal law requires the employer to bargain in good faith with their elected representatives over wages, hours, benefits, safety, and the rules for discipline and firing. The result — a collective bargaining agreement — is an enforceable contract that replaces the boss’s unilateral discretion with a negotiated, written set of terms.

Step one — organizing

Workers sign cards saying they want a union. If at least 30% sign, they can petition the NLRB for a secret-ballot election; a majority of votes wins recognition. This is the hardest, most contested phase: the weeks between filing and voting are when employers run their counter-campaigns. Forming a union is far harder in the U.S. than the high public approval would suggest.

Step two — bargaining

Once certified, the union and employer must negotiate a contract. The law requires good-faith bargaining but does not require either side to agree — and there is no deadline. New unions often wait years for a first contract, a gap that is itself one of the system’s most effective brakes on union growth.

Step three — enforcement

A contract is only as good as its enforcement. Unions handle grievances, represent members in disputes, and — as a last resort — strike. The strike is labor’s ultimate weapon, but since the 1981 PATCO firings the risk of permanent replacement has made it far rarer than in the mid-century era.

The legal framework since 1935

The right to organize is not a single law but a layered framework built up — and chipped away — over 90 years. These are the load-bearing pieces.

Wagner Act / NLRA (1935)

The cornerstone. Guarantees most private-sector workers the right to organize, bargain collectively, and strike; bans employer "unfair labor practices"; creates the National Labor Relations Board to run elections and enforce the law. Everything else builds on this.

Fair Labor Standards Act (1938)

Not a union law, but the floor unions had fought for: the federal minimum wage, the 40-hour week, and time-and-a-half overtime. Much of what unions won at the bargaining table became baseline law here.

Taft-Hartley Act (1947)

Passed over President Truman's veto. Rolled back union power: banned the closed shop, allowed states to pass "right-to-work" laws, let the President halt strikes with an 80-day injunction, and required union officers to sign anti-Communist affidavits. The single most important brake on the postwar movement.

Executive Order 10988 (1962)

Kennedy granted federal employees the right to bargain collectively for the first time. State and local laws followed through the 1960s-70s. This is why public-sector unionism exploded just as private-sector unionism began its long slide.

Janus v. AFSCME (2018)

The Supreme Court ruled that public-sector unions cannot collect "agency fees" from non-members they represent — making the entire public sector effectively right-to-work overnight. The most consequential labor ruling of the modern era.