Tracing the exact location of a fake Facebook account is difficult for regular users because Facebook does not publicly disclose IP addresses or sensitive user data due to privacy policies . However, you can use investigative clues, technical tools, and legal channels to uncover the creator's identity or approximate location.
This is a lesser-known technique. If you are friends with the fake account (or you create a dummy account to befriend them), you can attempt to trigger a security notification. how to trace location of fake facebook account
If the account is harassing you, impersonating you, or committing fraud: Report: Tracing the Location of a Fake Facebook