How do I export zip codes contained within a drive time radius?
Your question is a little vague, so that gives me some wiggle room to make assumptions:
Assumption 1: You have a network created that allows you determine your desired drive time
Assumption 2: You have a feature class of some sort of Zip codes
You can either do a drive time service area and perform a spatial selection such that the Zip Codes intersect the service area or use the actual drive time routes and spatially select the Zip Codes.
Hello Emma - Are you trying to do this in Business Analyst Web App?
Joe Borgione has the right idea.
I would add a word of caution about Zip Codes -
These are amorphous, and they are not true polygons as explained in much detail here; they are delivery routes, and the Postal Service can and does change them regularly. I understand managers want to leverage these as predetermined service areas but it's a nearsighted approach.
Joshua Schwartz brings up a good point; we as GIS practicioners look at them as polygons, but the Postal service actually maintains them as routes....