About San Martín
San Martín is a city in Mendoza, Argentina with a population of 82,549. It is the 66th largest of the 314 cities of 15,000 or more listed in Argentina, and the 6,995th largest worldwide. It lies 947 km from Buenos Aires.
Key Facts
Country
Region
Rank in region
#3of 10
Coordinates
-33.083, -68.473
Record updated
16 April 2026
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Nearby Cities
All 314 in ArgentinaClosest listed cities by great-circle distance from the city centre.