Choroplether allows the quick creation of choropleth maps in Vega-Lite using your own data. A demonstration showing the ONS 2017 mid-year population estimates for Trafford's wards has been automatically generated. The documentation provides further details on using the app, however please note that Choroplether requires a modern browser - it will not work in Internet Explorer.

Provide the data...
Provide the data in CSV or JSON format, (use the links to download a template example of each file type):


Select a geography...
matching your data. Choose "other (custom)" for further options:

Provide the geography in GeoJSON format:


Customise the map...
Customise the map with titles, choose the palette etc.

. Choose "other (custom)" for further options:

Enter a valid sequential palette scheme name

Select the type of scale and number of intervals to use.