You can Hide Primary Home Country location that will be shown in Info and Ads section on Facebook Page.

1- Login (you must be admin to the page that you want hide your location)
2- Open this link https://www.facebook.com/pages/transparency/location/optout/
3- Facebook will show a popup with this title "Request to Hide Your Home Country Location" click next.
4- Select the page that you want to hide your primary Home country location on Info and Ads section.
5- Facebook will provide you text input to write justification, write something and submit.