How do you label a polygon feature with a count of a point feature?

[TobiasEdwards]

I'm building a tree inventory, and zoomed in, each point represents a tree. Zoomed out far enough, I'd like a polygon feature to represent the area the trees are in, and I would like the polygon label to be a count of the point features.

How would I accomplish this in ArcGIS Pro?

[George_Thompson]

Maybe look at Feature Binning; Aggregate features into bins—ArcGIS Pro | Documentation  and Symbolize binned feature layers—ArcGIS Pro | Documentation 

I do think that it requires and Enterprise Geodatabase to do this for the data.

[JohnPlunkett]

Are your polygons already defined? -

Is the data static?

If so have a look at this workflow - How To: Count the number of point features within a polygon 

Then the output you can symbolize on the sum count.

Then you can use visibility ranges to turn display the polygons and the points at the desired zoom levels

[TobiasEdwards]

Thanks for the reply. 

The data is dynamic. Can the label change depending on the remaining points within the polygon?