The range of Calocitta formosa extends southward from Mexico through Central America. They are found in Mexico and the Central American countries of Costa Rica, Guatemala, El Salvador, Honduras, and Nicaragua. The northernmost extent of their range extends to southern Mexican states including Puebla, Colima, Oaxaca, Michoacán, and Chiapas. White-throated magpie-jays are found along the Pacific Coast of Mexico (rather than the Caribbean coast), as they prefer the drier climates found there. The Guanacaste Province of Costa Rica is home to particularly large populations of white-throated magpie-jays and many studies of this species have been conducted there.
Biogeographic Regions: nearctic (Native ); neotropical (Native )