Map of Udon Thani, Thailand

Udon Thani is the administrative centre of Udon Thani, Thailand, with a population of about 130,531. It lies at 17.4157°N, 102.7859°E. Udon Thani is about 475 km (295 mi) northeast of Bangkok, the capital. The nearest city on our map is Nong Bua Lamphu, 44 km to the southwest.

Udon Thani at a glance

Where is Udon Thani?

• The 22nd largest city in Thailand by recorded population.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 11 h 05 min on the shortest day to 13 h 10 min on the longest day (around 21 December and 21 June).

Cities near Udon Thani

• Nong Bua Lamphu — 44 km southwest
• Nong Khai — 52 km north
• Tha Bo — 53 km northwest
• Vientiane — 64 km north, Laos
• Khon Kaen — 108 km south
• Loei — 113 km west
• Chum Phae — 121 km southwest
• Kalasin — 133 km southeast
• Maha Sarakham — 147 km south
• Ban Phai — 151 km south

Largest cities in Thailand

• Bangkok — 5,104,476
• Samut Prakan — 388,920
• Mueang Nonthaburi — 254,375
• Chon Buri — 219,164
• Phra Pradaeng — 196,129
• Bang Khae — 193,002
• Hat Yai — 191,696
• Pak Kret — 190,272
• Sai Mai — 188,123
• Si Racha — 178,916

Map of Thailand 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.