Facebook – How to stop friends from posting the location on Facebook

There is no setting to currently do this. I would imagine that your hometown needs to be "realized" via search (https://www.facebook.com/search/results.php). So if it's not there you would not be able to detect in the profile settings.

Consider creating a new location (https://www.facebook.com/help/?faq=175921872462772) then you should be able to use it as your hometown.

BEFORE you post the status - that detail was left off the last answer. I think that will do the trick. If not, I'll correct this post.

Click on the little "x" next to the city name to remove the location tag and it won't be added next time you update till you specially add the location yourself.

After logout/login, the setting persists