Nepenthes edwardsiana is endemic to the highland slopes of Mount Kinabalu and the eastern side of neighbouring Mount Tambuyukon in Sabah, Borneo. On Mount Kinabalu, this species has been recorded from the Marai Parai plateau, East Ridge, Upper Kolopis River, and an area below the Kambarangoh Telekom station (below Pondok Lowii). Nepenthes edwardsiana has an altitudinal distribution of 1500-2700 m above sea level.