Label Expression for just one polygon

[JoeBorgione]

As described in https://community.esri.com/thread/235850-symbolize-by-mean-arcade as well as https://community.esri.com/thread/235847-mean-for-all-features-not-just-one-arcade, I have a polygon feature class that is the result of appending monthly delivery data per (zipcode) polygon.  I'd like to label just one instance of each zipcode, and I'm trying to figure out a Python ( or other) expression to do so. Basically, I have 12 polygons 'stacked' on top of each other, so if I do a simple label class, I get all 12 labels: I only need one.

[XanderBakker · Accepted solution]

I see that you have a year and month field in your data. I it possible to define a label class and query for a certain month?

[JoeBorgione]

I like that idea...  Let me chase it down and I'll post up what I figure out....

eta:  A simple sql expression of Month = 1 is all it took!

In ArcMap, I use this Python expression to get the same results: