Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela.
Eastern and southern Venezuela, the Guianas, and south-eastern Colombia (Vichada and Amazonas), eastern Ecuador, eastern Peru and northern Bolivia (eastern Pando) eastern across most of Amazonian Brazil (east to Marajó I and western Maranhío, south to northern Rondônia).
 
Population
Estimated population is unknown (2010).
Green Oropendola (Psarocolius viridis) [XC451345]
by Brice de la Croix from Roura, Montagne des Chevaux, French Guiana (begging call)
Green Oropendola (Psarocolius viridis) [XC212836]
by Joe Klaiber from Reserva Extrativista Alto Juru\u00e1. Lago Cear\u00e1, Brazil (song, song while displaying)
Subspecies
No subspecies.
Analysis of mitochondrial DNA indicates present species is closer to Amazonian Oropendola (Psarocolius yuracares) than to Crested Oropendola (Psarocolius decumanus). Populations in north-eastern Peru sometimes separated as subspecies flavescens (described from Xeberos, in eastern Peru), but this separation seems unwarranted.