How do I make a choropleth map?



  1. Define geometries. You can start with an existing shapefile (see code) or you can define each geometry manually using this tool for NYC addresses or this tool for generic addresses.
  2. Set colors. You can render numerical values through a supported color scheme or you can specify each color in a column named FillColor.
  3. Save the file as a geotable CSV in target_folder.