Alajuela is the capital city of the province of Alajuela in Costa Rica. It is also the name of the district (distrito) that includes the city. Alajuela serves as the capital for the canton of Alajuela, an area much larger than the district. It is the birthplace of Juan Santamaría, the national hero of Costa Rica. It hubs the Juan Santamaría International Airport, the main airport serving Costa Rica (IATA: SJO / ICAO: MROC), which is located 3 kilometers south of the city.