List of striking United States workers by year

The Bureau of Labor Statistics, and the predecessor organizations it cites, have kept track of the number of striking workers per year since 1881.

In 1915, the Bureau of Labor Statistics had formed a more systemized set of data collection.

[5]: 203  Any strikes with fewer than six workers or lasting less than a day were excluded from data leading to marginally smaller estimates then the previous period.

[3]: 36  For strike numbers this change could pose issues, however for total worker estimates it is considered to only have small effects.

Data from 1981[b] to present remains an underestimate of workers striking each year in comparison to all other periods.