The hog deer exists in forest edges and open grassland habitats on the islands of Culion and Busuanga, which during the Pleistocene were part of the landmass of Greater Palawan, but not on Palawan itself nowadays.
The hog deer inhabits forest margins and open grasslands on Culion and Busuanga islands, which were part of Greater Palawan during the Pleistocene epoch but are not found on Palawan today.