Eastern slope of eastern Andes in southern Colombia (Serranía de los Churumbelos in eastern Caucaâ€"western Caquetá, and eastern Nariñoâ€"western Putumayo border), eastern slope in Ecuador (Sucumbíos south to Zamora-Chinchipe) and almost entire eastern slope in Peru (south to Puno).
 
Population
Estimated population is unknown (2010).
Yellow-throated Tanager (Iridosornis analis) [XC259651]
by Mitch Lysinger from Napo: km 5 Loreto road, Ecuador (call, flight call, calls, flight calls)
Yellow-throated Tanager (Iridosornis analis) [XC277434]
by Jerome Fischer from Estacion Cientifica San Franscisco, Ecuador (song)
Subspecies
No subspecies.
Has been considered to form a superspecies with Purplish-mantled Tanager (Iridosornis porphyrocephalus), and sometimes treated as conspecific. Evidence for treatment as two separate species is weak, and sympatry not proven.