NLRB Stats Archive › Annual Reports › FY1957 › Collective-bargaining elections — by union affiliation
Collective-bargaining elections — by union affiliation
| Union affiliation | Elections participated in | Elections participated in | Elections participated in | Employees involved (number eligible to vote) | Employees involved (number eligible to vote) | Employees involved (number eligible to vote) | Valid votes cast | Valid votes cast | Valid votes cast | Valid votes cast |
|---|---|---|---|---|---|---|---|---|---|---|
| Union affiliation | Total | Won | Percent won | Total eligible | Employees in units selecting bargaining agent — Number | Employees in units selecting bargaining agent — Percent of total eligible | Total | Percent of total eligible | Cast for the union — Number | Cast for the union — Percent of total cast |
| Total | 4,729 | 2,942 | 62.2 | 458,904 | 264,920 | 57.7 | 410,619 | 89.5 | 261,762 | 63.7 |
| AFL-CIO | 4,464 | 2,619 | 58.7 | 444,960 | 176,497 | 39.7 | 398,612 | 89.6 | 199,441 | 50 |
| Unaffiliated | 510 | 323 | 63.3 | 125,030 | 88,423 | 70.7 | 107,695 | 86.1 | 62,321 | 57.9 |
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Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.