Map of Sanmenxia, China

Sanmenxia is a city in Henan, China, with a population of about 669,307. It lies at 34.7747°N, 111.1814°E. Sanmenxia is about 733 km (456 mi) southwest of Beijing, the capital. The nearest city on our map is Yuncheng, 33 km to the northwest.

Sanmenxia at a glance

Where is Sanmenxia?

• The 14th largest city in Henan on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 49 min on the shortest day to 14 h 29 min on the longest day (around 21 December and 21 June).

Cities near Sanmenxia

• Yuncheng — 33 km northwest
• Yima — 64 km east
• Changzhi — 70 km northeast
• Hancheng — 102 km northwest
• Huayin — 105 km west
• Luoyang — 117 km east
• Jiyuan — 132 km east
• Xixiang — 159 km east
• Jincheng — 171 km northeast
• Yunyang — 204 km southeast

Largest cities in Henan

• Zhengzhou — 4,253,913
• Shangqiu — 1,859,723
• Nanyang — 1,811,812
• Kaifeng — 1,451,741
• Xinyang — 1,416,800
• Luoyang — 1,390,581
• Luohe — 1,294,974
• Xuchang — 1,265,536
• Anyang — 1,146,839
• Xinxiang — 1,047,088

Largest cities in China

• Shanghai — 24,874,500
• Beijing — 18,960,744
• Guangzhou — 18,676,605
• Shenzhen — 17,494,398
• Tianjin — 13,866,009
• Wuhan — 13,739,000
• Chengdu — 13,568,357
• Xi’an — 12,952,907
• Hangzhou — 11,936,010
• Dongguan — 9,644,871

Map of China 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.