Can I do a zip code only field?

I want to do a two or three page form. The first page needs to require ONLY zip code. Is there any way I can make this work without using a generic text field? I don't want people entering fake zip codes.

Thank you!

You can try the Zip Code Auto-Suggest widget: https://widgets.jotform.com/widget/zip_code_auto-suggest 

If you do not know how to add a widget to your form, please check this guide: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-your-Form