John Snow Cholera Data

The data behind John Snow's famous map of the 1854 Broad Street cholera outbreak, digitised and ready to use in modern GIS software

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By Robin Wilson

What's in the dataset
  • Cholera deaths, as points with counts
  • Water pump locations
  • Snow's original map, georeferenced
  • A modern Ordnance Survey street layer
Deaths and pumps from 1854 on a modern Ordnance Survey basemap
Deaths and pumps from 1854 on a georeferenced 1854 map