Umiray Dumaget is spoken along the Pacific coast of eastern Luzon, Philippines from just south of Baler, Aurora to the area of Infanta, Quezon, and on the northern coast of Polillo Island.[2] Himes (2002) reports little dialectal variation.
Reid (1994)[3] reports the following locations for Umiray Dumaget (Central Agta).
^Reid, Lawrence A. 1994. "Possible Non-Austronesian Lexical Elements in Philippine Negrito Languages." In Oceanic Linguistics, Vol. 33, No. 1 (Jun. 1994), pp. 37–72.
^ abHimes, Ronald S. 2002. The relationship of Umiray Dumaget to other Philippine languages. Oceanic Linguistics 41(2):275–294. JSTOR3623311.