Pilok Subdistrict covers an area of , about 95% of which is natural forest, in the Tenasserim Hills of Western Thailand. The subdistrict contains four villages (muban): I-tong, Bo-ong (), Mai Rai Pa () and Pilok Khi (), with a total population of 6,512 from 2,365 households. Its local administration falls entirely under the Pilok Subdistrict Administration Organization.