City profile · Argentina · South America
La Unión
City population
24,293
#226
in Argentina
#87
in Buenos Aires
#21,630
worldwide
-34.876, -58.542 · 33 km from Buenos Aires
About La Unión
La Unión is a city in Buenos Aires, Argentina with a population of 24,293. It is the 226th largest of the 314 cities of 15,000 or more listed in Argentina, and the 21,630th largest worldwide. It lies 33 km from Buenos Aires.
Key Facts
Country
Region
Rank in region
#87of 107
Coordinates
-34.876, -58.542
Record updated
22 May 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.