South Tapanuli Regency in the context of "Tapanuli orangutan"

Sipirok is a town in North Sumatra province of Indonesia and the seat (capital) of South Tapanuli Regency. It is known for the Batu Jomba Sipirok, a badly maintained highway which becomes difficult and dangerous during wet weather.

Padangsidimpuan (also known as Padang Sidimpuan) is a city in North Sumatra, Indonesia, and the former capital of South Tapanuli Regency, which surrounds the city. It covers an area of 159.28 km and had a population of 178,818 according to the 2000 Census. This increased to 191,554 in the 2010 Census and 225,105 in the 2020 Census. The official estimate as of mid-2023 was 236,217, comprising 119,228 males and 116,989 females.

Padangsidimpuan City is located 448 km from the provincial capital, Medan, and is situated in the southwestern most part of North Sumatra Province.

North Padang Lawas (Padang Lawas Utara, abbreviated as Paluta) is a landlocked regency in the North Sumatra province of Indonesia. It has an area of 3,945.56 km, and had a population of 223,049 at the 2010 census and 260,720 at the 2020 census; the official estimate as of mid-2024 was 280,595. North Padang Lawas Regency was created on 17 July 2007 (along with a separate Padang Lawas Regency to the south) from the eastern parts of the South Tapanuli Regency. Its administrative seat is the town of Gunung Tua.

Padang Lawas is a regency in the North Sumatra province of Indonesia. It covers an area of 3,912.18 km, and had a population of 226,807 at the 2010 Census and 261,011 at the 2020 Census; the official estimate as of mid-2024 was 280,764 - comprising 140,953 males and 139,811 females. Its administrative seat is the town of Sibuhuan in Barumun District. Padang Lawas Regency was created on 17 July 2007 (along with a separate North Padang Lawas Regency) from southeastern parts of the South Tapanuli Regency. It is the only regency in this province that borders two other provinces, West Sumatra and Riau.