Advice Needed: Creating a zip code search tool

What would be the easiest way to create this quickly?

I have a huge list of names, addresses and zip codes. Master List.

I have another list with the zipcodes inside of a county. US

What I would like to do, is copy and paste all the zipcodes in a county.

Paste it in one input form , in between if needed

And then it will search the main list and only give me the results that include that zip code.

You know when you type it out, it doesn’t seem that hard.

What’s the easiest way to set this up?

Any advice is greatly appreciated.