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) [XC821611]
by JAYRSON ARAUJO DE OLIVEIRA from Ponte dos incapazes, Porto Velho, Rond\u00f4nia, Brazil (song)
White-lored Tyrannulet (Ornithion inerme) [XC698625]
by Guilherme Melo Becher from Santa Terezinha do Tocantins, State of Tocantins, Brazil (duet, song)