NIOSH Mine and Mine Worker Charts

The following graphs, maps, and tables present 1983-2022 data for all mining in the U.S. by mining sector. Data source: Mine Safety and Health Administration (MSHA). See Statistical Methodology for further details.

Mines
Employees

Office workers are excluded from fatalities and injuries. See Statistical Methodology for further details.

Fatalities
Injuries

The following charts and tables summarize all U.S. mining disasters from 1839 through present. Charts are provided from 1839 through the last complete calendar year. A mining disaster is defined as an incident with 5 or more fatalities.

Mining Disasters