Map of Det Udom, Thailand

Det Udom is a city in Ubon Ratchathani, Thailand, with a population of about 35,669. It lies at 14.9060°N, 105.0784°E. Det Udom is about 509 km (317 mi) east of Bangkok, the capital. The nearest city on our map is Warin Chamrap, 39 km to the northwest.

Det Udom at a glance

Where is Det Udom?

• The 3rd largest city in Ubon Ratchathani on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 11 h 15 min on the shortest day to 13 h 01 min on the longest day (around 21 December and 21 June).

Cities near Det Udom

• Warin Chamrap — 39 km northwest
• Ubon Ratchathani — 44 km northwest
• Kantharalak — 55 km southwest
• Pakse — 81 km east, Laos
• Si Sa Ket — 84 km west
• Amnat Charoen — 116 km northwest
• Anlong Veaeng — 131 km southwest, Cambodia
• Surin — 170 km west
• Mukdahan — 186 km north
• Savannakhet — 188 km north, Laos

Largest cities in Ubon Ratchathani

• Ubon Ratchathani — 122,533
• Warin Chamrap — 43,102

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.