Map of Luján, Argentina

Luján is a city in Buenos Aires, Argentina, with a population of about 97,363. It lies at 34.5664°S, 59.1148°W. Luján is about 68 km (42 mi) west of Buenos Aires, the capital. The nearest city on our map is Pilar, 22 km to the northeast.

Luján at a glance

Where is Luján?

• The 44th largest city in Argentina by recorded population.
• The 18th largest city in Buenos Aires on this site.
• Located in the Southern and Western hemispheres.
• Daylight ranges from about 9 h 50 min on the shortest day to 14 h 28 min on the longest day (around 21 June and 21 December).

Cities near Luján

• Pilar — 22 km northeast
• Mercedes — 30 km west
• José C. Paz — 32 km east
• Tortuguitas — 35 km east
• San Miguel — 37 km east
• Merlo — 37 km east
• Los Polvorines — 38 km east
• Bella Vista — 39 km east
• Villa de Mayo — 40 km east
• Pontevedra — 43 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 →

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.