How to Create Custom Regions on a Map

[petrified_goose]

Hi! I'm new to Power BI so I'm not sure if it has this function. 

I have data on events that happened in Michigan and where in Michigan they happened. However, instead of specific cities, we use regions. This is what the regions look like.

I would like to create a map visual on Power BI where we can see the number of events that happened in each region. However, I'm not sure how to specify regions on a map in Power BI. 

Any help would be appreciated. Thank you!

[amitchandak]

@petrified_goose , You need to use shape map, For that you need to have a json map of required region

Map Json - Shape Map
https://docs.microsoft.com/en-us/power-bi/visuals/desktop-shape-map
https://dataveld.com/2016/09/12/topojson-map-files-for-power-bi-shape-map/
https://medium.com/weareservian/power-bi-custom-maps-part-ii-shape-map-939873da3f66
https://radacad.com/shape-map-better-than-the-filled-map
https://doc.arcgis.com/en/maps-for-powerbi/get-started/prepare-your-data.htm