Mardingding is an isolated district of Karo Regency in North Sumatra.
It lies 95 kilometres by broken road from Kabanjahe, the administrative centre of the Regency.
[2][3] It is not to be confused with Lake Mardingding, or Mardinding village, in Tiganderket District.
There are twelve desa within Mardingding District:[4] Lau Pakam is on the border with Aceh, and lies 40 km from Kutacane.
The district is situated 280 metres above sea level and has an area of 267.11 square kilometres.