San Mateo is a canton in the Alajuela province of Costa Rica. The head city is in San Mateo district. History San Mateo was created on 7 August 1868 by decree 30. Geography San Mateo has an area of km² and a mean elevation of metres. The northern border of the elongated province is formed by the Jesús María, Machuca, Agua Agría, Calera rivers and Quebrada Zapote. The Quebrada Concepción, Grande de Tárcoles and the Machuca rivers establish the southern border. Cerro La Lana is a landmark that delineates a northeast tip of the canton. Districts The canton of San Mateo is subdivided into the following districts: San Mateo Desmonte Jesús María Labrador Demographics For the 2011 census, San Mateo had a population of inhabitants. Transportation Road transportation The canton is covered by the following road routes: References Cantons of Alajuela Province Populated places in Alajuela Province