San Diego is a district of the La Unión canton, in the Cartago province of Costa Rica.

[1][2] San Diego has an area of 8.01 km²[3] and an elevation of 1,270 metres.

[1] For the 2011 census, San Diego had a population of 21,620 inhabitants.

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

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