# Geo map chart

A worldmap is a chart that displays a metric based on a dimension containing country codes : 

![](https://34758050-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MC1g4I2_CgXd0qAq1P7%2Fuploads%2Flr9AT4RgS24srxXZPaUg%2Fimage.png?alt=media\&token=87835ee5-bd8d-47ec-92f7-6ccb550dcb12)

### Chart usage

The dimension should contain a list of two letters country code (as per the ISO 3166-1 alpha-2 norm).

Here is an example dataset that can be used for maps : 

<table><thead><tr><th width="315.3619282822532">country_code</th><th>number_of_customers</th></tr></thead><tbody><tr><td>fr</td><td>12</td></tr><tr><td>us</td><td>7</td></tr><tr><td>ca</td><td>3</td></tr></tbody></table>

For more information your can refer to : <https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2>

### **Chart characteristics**

* Number of metrics : 1
* Number of dimensions : 1