Ehlanzeni District Municipality is the most eastern district of the province of Mpumalanga. It is bordered by Swaziland and Mozambique in the east, Limpopo Province in the north, Gert Sibanda District in the south and Nkangala District in the west.It consists of five local municipalities: Mbombela, Thaba Chweu, Nkomazi, Umjindi and Bushbuckridge, which became part of the district after the government decision to phase out cross-boundary municipalities in 2006.
The majority of the population lives in formal urban areas, or in villages in the tribal areas. Ehlanzeni District has the highest population density in Mpumalanga. The estimated population density varies substantially between the five municiplaities with Mbombela and Bushbuckridge having the highest densities and Umjindi and Thaba Chweu the lowest.