Alahan Panjang, along with Padang, Pariaman, Silungkang, Sawah Lunto, Sijinjung and Suliki, has been cited as an area which had particularly active communists in local politics.
Padang, Pariaman, Silungkang, Sawah Lunto, Alahan Panjang, and Suliki of West Sumatra have been cited as an area which was particular active in communism.