How to Create a shape map from Zip Code or County List

Question

Hi,
I am new to mapping so sorry if this is a basic question...

I would like to create a map that groups county or zip code shapes into larger shapes and then export this as a KML or GeoJSON file for use in Power BI.  When I create a layer in the product from my list of counties for example, I only see dots, not shapes.  So I would appreciate any suggestions for this.

Attached is an example of what I would like to end up with.  thanks for any help!

Omar_A · Accepted Answer

You can use the Dissolve tool in ArcGIS Pro. Once you have created the dissolved layer, you can export it as a KML or GeoJSON file for use in Power BI.