The area of the partido is 51.44 km2 (19.9 sq mi). In 2010 there were 291,608 inhabitants.[1] San Isidro borders on the partidos of Tigre, Vicente López, San Martín and San Fernando.
The San Isidro cathedral (Catedral de San Isidro in Spanish) was completed on July 14, 1898. Constructed in Neo-Gothic style, it stands 68 m (223 ft) tall. It is located opposite Plaza Mitre in San Isidro's historic quarter.
San Isidro is home to a historically prominent Jockey Club, that runs San Isidro's world-class race track, the Hipódromo de San Isidro.
Rugby
San Isidro is the national capital of Rugby and home to two of the most important rugby clubs in the country - SIC (San Isidro Club) and CASI (Club Atlético San Isidro).