Argentina, Bolivia, Brazil, Paraguay, Peru, Uruguay (B).
South-eastern Peru (Puno), central and south-eastern Bolivia (southern from Cochabamba and Santa Cruz) and south-western Brazil (south-western Mato Grosso) south to western Paraguay and northern Argentina (south to La Rioja, San Luis and Entre Ríos, east to to western Corrientes).
 
Population
Estimated population is unknown (2010).
White-fronted Woodpecker (Melanerpes cactorum) [XC770833]
by Guilherme Melo Becher from Los Conquistadores, Federaci\u00f3n, Entre R\u00edos, Argentina (drumming)
White-fronted Woodpecker (Melanerpes cactorum) [XC709888]
by Richard E. Webster from Reserva Paraba Frente Roja (Armonia), Departamento de Cochabamba, Bolivia (call, interaction calls)
Subspecies
Despite some variation in throat colour (from all white to all yellow), differences not sufficiently constant geographically to warrant recognition of any subspecies.