Map of Lạng Sơn, Vietnam

Lạng Sơn is the administrative centre of Lạng Sơn Province, Vietnam, with a population of about 200,108. It lies at 21.8526°N, 106.7610°E. Lạng Sơn is about 132 km (82 mi) northeast of Hanoi, the capital. The nearest city on our map is Baihecun, 57 km to the northeast.

Lạng Sơn at a glance

Where is Lạng Sơn?

• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 10 h 48 min on the shortest day to 13 h 28 min on the longest day (around 21 December and 21 June).

Cities near Lạng Sơn

• Baihecun — 57 km northeast, China
• Chũ — 57 km south
• Chongzuo — 86 km northeast, China
• Bắc Giang — 87 km southwest
• Thành Phố Uông Bí — 91 km south
• Cung Kiệm — 97 km southwest
• Thái Nguyên — 99 km west
• Chí Linh — 99 km southwest
• Bắc Kạn — 101 km west
• Bắc Ninh — 103 km southwest

Largest cities in Vietnam

• Ho Chi Minh City — 14,002,598
• Hanoi — 8,053,663
• Haiphong — 2,625,200
• Cần Thơ — 1,507,187
• Huế — 1,380,000
• Da Nang — 1,276,000
• Biên Hòa — 1,272,235
• Thanh Hóa — 850,000
• Vinh — 790,000
• Thuận An — 588,616

Map of Vietnam 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.