We have a page on our website where our audience enters their email address and zip code. Then the automated email gets sent out to them. That said, I'm wondering if there's a way to pull zip code metrics with the data collected in the open rate section?
Sure! There are a few ways to go about this. First, you could create a segment with the criteria of "Opened ____ mailing" and "Zip Code is within ___ miles". Here is an article about creating segments, and there is a specific section on Zip Codes.
The other option is to save the open rate data as a segment from the Response page, and then view the Contact Field "Zip Code" for all of those contacts. You could then export that list and analyze from there, as that would give you a list of everyone's zip code who opened that mailing.
I hope this helps! Please let me know if there was something else you were looking to accomplish!