On Your Profile, there is a section toward the top of the page that shows your current Primary Working Location. To change this location, click Edit. 

You can also add two Additional Working Locations if you choose.

To save changes to your working location(s), click Update Profile.

These changes will only be reflected on the profile to which you’ve made changes. To make changes on any other profiles you may have, scroll to the top of the Your Profile page. If you have multiple profiles, you will see a profile switcher showing your personal profile and/or any represented profiles you have.

Click on the switcher to select a profile, and you can edit your appearance details on each profile.