Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela.
Eastern and south-eastern Colombia, southern and south-eastern Venezuela and the Guianas south to eastern Ecuador, eastern Peru, northern Bolivia and north, west, and central Brazil (Amazonia east to eastern Pará and north-western Maranhío); also, apparently isolated coastal population in eastern Brazil (Alagoas south to Rio de Janeiro).
 
Population
Estimated population is unknown (2010).
White-lored Tyrannulet (Ornithion inerme) [XC504740]
by Juha Honkala from AM-354, Km 18, Careiro, Amazonas, Brazil (call)
White-lored Tyrannulet (Ornithion inerme) [XC653289]
by Jacob Wijpkema from Ass. San Luis, San Ignacio, Jos\u00e9 Miguel de Velasco, Santa Cruz Department, Bolivia (call)