City profile · Vietnam · Asia
Lạng Sơn
Lang Son Province · Vietnam
City population
200,108
#67
in Vietnam
#1
in Lang Son Province
#2,871
worldwide
21.853, 106.761 · 132 km from Hanoi
About Lạng Sơn
Lạng Sơn is a city in Lang Son Province, Vietnam with a population of 200,108. It is the 67th largest of the 301 cities of 15,000 or more listed in Vietnam, and the 2,871st largest worldwide. It lies 132 km from Hanoi.
Key Facts
Country
Region
Lang Son Province
Rank in region
#1of 3
Coordinates
21.853, 106.761
Record updated
14 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 301 in VietnamClosest listed cities by great-circle distance from the city centre.