The City of Ekurhuleni Metropolitan Municipality is a metropolitan municipality that forms the local government of the East Rand region of Gauteng, a large suburban region east of Johannesburg. Ekurhuleni means "place of peace" in XiTsonga. Ekurhuleni is one of the five districts of Gauteng and one of the eight metropolitan municipalities of South Africa. The seat of Ekurhuleni is Germiston and the most spoken language is Zulu at 28.6%. The city is home to South Africa's busiest airport, OR Tambo International Airport, which is in the Kempton Park area of Ekurhuleni.