See all nodes where user profile entity reference matches the same entity reference on the node
The easiest way is creating a view for the School content type and add the fields you want to display on your list. Then add:


A reference to the entity that is common between the School content type and the ZipCode content type. If there is no connection between the two, you will also need to add a reference to the Region content type and then to the ZipContent type.
Add an argument or contextual filter for the user ID of the currently logged-in user and limit the number of nodes displayed.


Note: I have sometimes achieved the same result by creating a view (for users) referencing the content types and adding the desired fields.

This is a video about view arguments: http://mustardseedmedia.com/podcast/episode39.