La Unión is a canton in the Cartago province of Costa Rica. The head city is in Tres Ríos district. Toponymy A story tells of a group of Spanish missionaries from a convent in Guatemala, arriving accompanied by Indians of different cultural groups. The small town they established was called , meaning The Union, to commemorate their friendliness and brotherhood. History La Unión was created on 7 December 1848 by decree 167. Geography La Unión has an area of km² and a mean elevation of metres. La Unión is a compact canton situated midway between the national capital of San José and the former colonial capital city of Cartago. Districts The canton of La Unión is subdivided into the following districts: Tres Ríos San Diego San Juan San Rafael Concepción Dulce Nombre San Ramón Río Azul Demographics For the 2011 census, La Unión had a population of inhabitants. Education The Lycée Franco Costaricien, a French international school, is in Concepción district. Transportation Road transportation The canton is covered by the following road routes: Rail transportation The Interurbano Line operated by Incofer goes through this canton. References External links MI CARTAGO, Cartago Province's local newspaper Cantons of Cartago Province Populated places in Cartago Province