Issue with Adding Duplicate City Name "Largo" Under MD

Summary:

We are trying to add a new supplier and encountered an issue when entering the address. We couldn't add "Largo" as the city with the zip code 20774 because it appears that Largo is missing from Prince George's County in Maryland under Manage Geographies. I’m encountering an issue when trying to add the city name "Largo" under Maryland (MD). The system is giving an error stating that I can't add a duplicate city name as there is Largo in Florida (FL). However, there are other cities with the same name in different states which are already present. Please clarify