Map series

The map series is the basic series type in Highcharts Maps. It creates a choropleth map  offering the ability to create map shapes and visualize their values through color coding or patterns.

Initialize the constructor

When setting the mapChart constructor, the default series type is map. If the type option is not specified, it is inherited from chart.type. For an overview of the map series options see the API reference .

Highcharts.mapChart('container', {
   // ...
});

Load the map

Highcharts Maps loads its maps from TopoJSON or GeoJSON. A more detailed instruction on how to work with it is written here: Load the map 

Add and join data

In this link , you can find detailed descriptions of how to work with series.map.data , and series.joinBy .

You can also find there another way of joining the data by omitting mapData  and setting the path  directly on the data point.