NIOSH Mine and Mine Worker Charts
The following graphs, maps, and tables present 1983-2023 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.
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Active mining operationsA chart showing the number of active mines per year by sector.
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Active mining operations per countyA choropleth map showing the number of active mining operations per county.
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Active mining operations by locationA dot map showing the approximate location of active mining operations by sector.
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Active longwall mining operations by locationA dot map showing the approximate location of active longwall mining operations.
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Employee hoursA chart showing the number of employee hours per year by sector.
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Employees by sectorA chart showing the number of employees per year by sector.
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Employees per countyA choropleth map showing the number of employees per county.
Office workers are excluded from fatalities and injuries. See Statistical Methodology for further details.
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Counts and ratesCharts showing the number and rate of fatal injuries per year.
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Fatalities by accident classA chart comparing the number of fatal injuries by accident class.
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Fatalities per countyA choropleth map showing the number of fatal injuries by county.
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Fatalities by locationA dot map showing the approximate location of fatal injuries by sector.
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Counts and ratesCharts showing the number and rate of nonfatal lost-time injuries per year.
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Counts and rates by sectorCharts showing the number and rate of nonfatal lost-time injuries per year by sector.
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Injuries by accident classA chart comparing the number of nonfatal lost-time injuries by accident class.
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Injuries per countyA choropleth map showing the number of nonfatal lost-time injuries by county.
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Injuries by locationA dot map showing the approximate location of nonfatal lost-time injuries by sector.
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.
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Fatalities and incidentsCharts showing number of mining disasters and associated fatalities per year.
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List of mining disastersA list of mining disasters including location, type of accident, and type of mine.
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Disasters by accident typeA chart showing the number of mining disasters grouped by accident type.