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) [XC427725]
by Jacob Wijpkema from RPPN Esta\u00e7\u00e3o Veracel, Porto Seguro-BA, Bahia, Brazil (canto)
White-lored Tyrannulet (Ornithion inerme) [XC407270]
by GABRIEL LEITE from Sistemas de Trilhas do PPBio, Parque Nacional do Viru\u00e1, Caracara\u00ed, Roraima, Brazil (song)