Map of San Isidro, Buenos Aires, Argentina

San Isidro is a city in Buenos Aires, Argentina, with a population of about 45,190. It lies at 34.4697°S, 58.5211°W. San Isidro is about 21 km (13 mi) northwest of Buenos Aires, the capital. The nearest city on our map is Don Torcuato, 10 km to the west.

San Isidro at a glance

Where is San Isidro?

• Located in the Southern and Western hemispheres.
• Daylight ranges from about 9 h 51 min on the shortest day to 14 h 28 min on the longest day (around 21 June and 21 December).

Cities near San Isidro

• Don Torcuato — 10 km west
• General Pacheco — 11 km west
• Santos Lugares — 15 km south
• Villa de Mayo — 15 km west
• Hurlingham — 17 km southwest
• Los Polvorines — 17 km west
• Bella Vista — 19 km southwest
• San Miguel — 19 km southwest
• Haedo — 20 km south
• Buenos Aires — 21 km southeast

Largest cities in Buenos Aires

• Mar del Plata — 593,337
• Avellaneda — 367,554
• Bahía Blanca — 299,101
• Merlo — 268,961
• Quilmes — 262,379
• José C. Paz — 230,208
• Lanús — 212,252
• La Plata — 195,443
• Berazategui — 180,523
• San Miguel — 168,762

Largest cities in Argentina

• Buenos Aires — 2,891,082
• Córdoba — 2,106,734
• Rosario — 948,312
• Mar del Plata — 593,337
• San Miguel de Tucumán — 548,866
• Salta — 520,683
• Santa Fe — 391,164
• Avellaneda — 367,554
• Corrientes — 346,334
• Posadas — 305,874

Map of Argentina and all its cities →

Other places named San Isidro

• San Isidro — Lima region, Peru
• San Isidro — San José, Costa Rica
• San Isidro — México, Mexico

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.