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World choropleth map

Choropleth maps are thematic maps in which areas are shaded based on the prevalence of a particular variable. They are a great way of showing how a measurement varies across a geographic area.

Below is an example of choropleth map showing the average life expectancy by country. States shaded dark blue have a higher average life expectancy, while states shaded dark red have a lower average life expectancy. Data is provided by the World Bank.

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Click Powered by Mode to duplicate this example and make your own world choropleth map. Learn more about using HTML to customize your reports.

Create a world choropleth map

Add the stylesheet links and script tags to the top of the HTML:

<link rel="stylesheet" href="">
<script src=""></script>
<script src="//"></script>
<script src="//"></script>
<script src=""></script>

Add the customizable snippet at the bottom of the HTML:


	query_name: "Query 1",
	width: 1100,
	country_column: "country_code",
	country_code_type: "iso_code_alpha_3",
	// Options for country_code_type:
	//    name
	//    iso_code_numeric
	//    iso_code_alpha_2
	//    iso_code_alpha_3
	value_column: "life_expectancy",
	title: "Life expectancy by country",
	color_gradient: ["#b2182b", "#d6604d", "#f4a582", "#fddbc7", "#d1e5f0", "#92c5de", "#4393c3", "#2166ac"]


You can customize the map by editing the parameters in the snippet:

  • html_element: If not provided, the map will be added as the last element in the report. To place it elsewhere, select an element in your report with this parameter.
  • width: The width of the map. Defaults to 950. The map will always stay the same ratio.
  • height: The height of the HTML element containing the map. The map itself will resize according to the width value provided.
  • query_name: The name of the query that returns the map's dataset. If you update the name of the query, you’ll need to update it here as well.
  • country_column: The dataset column that returns the identifier for each country.
  • country_code_type: The type of identifier returned in the country_column. There are four options: name (the full name of the country, such as Egypt and Germany), iso_code_numeric (the numeric ISO country code, such as 818 and 276), iso_code_alpha_2 (the uppercase two-letter ISO country code, such as EG and DE), and iso_code_alpha_3 (the uppercase three-letter ISO country code, such as EGY and DEU).
  • value_column: The dataset column that returns the value that determine how each country is shaded.
  • title: The map's title.
  • color_gradient: A list of colors to show in the map. Colors should be listed from low to high.

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