Create and use filled maps (choropleth maps) in Power BI
These visuals can be created and viewed in both Power BI Desktop and the Power BI service. The steps and illustrations in this article are from Power BI Desktop.
A filled map uses shading or tinting or patterns to display how a value differs in proportion across a geography or region. Quickly display these relative differences with shading that ranges from light (less-frequent/lower) to dark (more-frequent/more).
What is sent to Bing
Power BI integrates with Bing to provide default map coordinates (a process called geo-coding). When you create a map visualization in Power BI service or Power BI Desktop, the data in the Location, Latitude, and Longitude buckets (that is being used to create that visualization) is sent to Bing.
You, or your administrator, may need to update your firewall to allow access to the URLs Bing uses for geocoding. Those URLs are:
For more information about the data being sent to Bing, and for tips to increase your geo-coding success, see Tips and tricks for map visualizations.
When to use a filled map
Filled maps are a great choice:
- to display quantitative information on a map.
- to show spatial patterns and relationships.
- when your data is standardized.
- when working with socioeconomic data.
- when defined regions are important.
- to get an overview of the distribution across the geographic locations.
This tutorial uses the Sales and Marketing sample PBIX file.
From the upper left section of the menu bar, select File > Open
Find your copy of the Sales and Marketing sample PBIX file
Open the Sales and Marketing sample PBIX file in report view .
Select to add a new page.
Sharing your report with a Power BI colleague requires that you both have individual Power BI Pro licenses or that the report is saved in Premium capacity.
Create a filled map
From the Fields pane, select the Geo > State field.
Convert the chart to a filled map. Notice that State is now in the Location well. Bing Maps uses the field in the Location well to create the map. The location can be a variety of valid locations: countries, states, counties, cities, zip codes, or other postal codes etc. Bing Maps provides filled map shapes for locations around the world. Without a valid entry in the Location well, Power BI cannot create the filled map.
Filter the map to display only the continental United States.
a. To the left of the Visualizations pane, look for the Filters pane. Expand it if it is minimized
b. Hover over State and select the expand chevron
c. Place a check mark next to All and remove the check mark next to AK.
Select the paint roller icon to open the Formatting pane, and choose Data colors.
Select the three vertical dots and choose Conditional formatting.
Use the Default color - Data colors screen to determine how your filled map will be shaded. The options available to you include which field to base the shading, and how to apply the shading. In this example we're using the field SalesFact > Sentiment, and setting the lowest value for sentiment as orange and the highest value as blue. Values that fall between the maximum and minimum will be shades of orange and blue. The illustration at the bottom of the screen shows the range of colors that will be used.
The filled map is shaded in green and red, with red representing the lower sentiment numbers and green representing the higher, more-positive sentiment. To display additional detail, drag a field into the Tooltips well. Here we've added SalesFact > Sentiment gap. Highlighting the state of Idaho (ID) shows us that sentiment gap is low, at 6.
Power BI gives you plenty of control over the appearance of your filled map. Play around with these data color controls until you get the look you want.
Highlighting and cross-filtering
For information about using the Filters pane, see Add a filter to a report.
Highlighting a location in a filled map cross-filters the other visualizations on the report page... and vice versa.
To follow along, first save this report by selecting File > Save.
Copy the filled map using CTRL-C.
From the bottom of the report canvas, select the Sentiment tab to open the Sentiment report page.
Move and resize the visualizations on the page to make some room, then CTRL-V paste the filled map from the previous report. (See the following images)
On the filled map, select a state. This cross-highlights and cross-filters the other visualizations on the page. Selecting Texas, for example, cross-filters the cards and cross-highlights the bar chart. From this, I know that Sentiment is 75 and that Texas is in the Central District #23.
Select a data point on the VanArsdel - Sentiment by Month line chart. This filters the filled map to show Sentiment data for VanArsdel and not their competition.
Considerations and troubleshooting
Map data can be ambiguous. For example, there's a Paris, France, but there's also a Paris, Texas. Your geographic data is probably stored in separate columns – a column for city names, a column for state or province names, etc. – so Bing may not be able to tell which Paris is which. If your dataset already contains latitude and longitude data, Power BI has special fields to help make the map data unambiguous. Just drag the field that contains your latitude data into the Visualizations > Latitude area. And do the same for your longitude data.
If you have permissions to edit the dataset in Power BI Desktop, watch this video for help with addressing map ambiguity.
If you do not have access to latitude and longitude data, but you do have edit access to the dataset, follow these instructions to update your dataset.
For more help with Map visualizations, see Tips and tricks for map visualizations.