If you have gone to college or your family has moved, make sure to update your Facebook timeline so your friends know about your new location. When you change the city you live in, you can also change which of your Facebook friends can view this information.
Navigate to your Facebook timeline on your PC and click the "Update Info" button to open the About page.
Click "Edit" in the Living section of the About page.
Enter your new location in the Current City field. As you type a location, it will appear in a menu underneath the field. Click the correct location to add it as your current city.
Click the "Audience Selector" icon to the right of the Current City field to select which of your Facebook friends can view this information.
Click "Save" to save the new city as your current location on your timeline.
You can also change your relationship status, work, education and family information from the About screen.