 It covers an area of 57.6 sq.km, consisting of three physically unconnected sections; Helvetia and Manunggal are suburbs lying immediately to the west of Medan city; Pematang Johar is a suburb lying to the east of Medan city; Telaga Tujuh and Karang Gading are villages lying on a strip of land between Hamparan Perak district (Deli Serdang Regency) and Secanggang district (in Langkat Regency).Labuhan Deli comes from the word "Harbour".Under the authority of the Deli Sultanate, this area is a part of the history of the Deli Kingdom.