Jakartas
Jakartas is not an official geographic designation. In English, Jakarta is normally treated as a singular proper noun, and the form “Jakartas” is rarely used and often ambiguous. When encountered, it may function as a plural reference to multiple uses of the name Jakarta or to different representations of the city, but there is no standard or widely accepted meaning.
In formal writing, it is better to avoid the plural and instead specify the intended sense, such
Jakarta is the capital region of Indonesia, officially the Special Capital Region of Jakarta (Daerah Khusus
In usage, “Jakartas” may appear in fictional or comparative contexts but is not a standard or recognized