Santiago is a district of the Palmares canton, in the Alajuela province of Costa Rica.
Santiago was created on 19 April 1911 by Decreto Ejecutivo 12. Segregated from Atenas canton.
Santiago has an area of km<sup>2</sup> and an elevation of metres.
For the 2011 census, Santiago had a population of inhabitants.
The district is covered by the following road routes: