Río Azul is a district of the La Unión canton, in the Cartago province of Costa Rica.

[1][2] Río Azul was created on 15 July 1968 by Ley 4148.

[2] Río Azul has an area of 4.89 km²[3] and an elevation of 1,200 metres.

[1] For the 2011 census, Río Azul had a population of 12,010 inhabitants.

[6] The district is covered by the following road routes: This Costa Rican location article is a stub.