Population 2,644 (2005 census).
The town of Deothang, at 870 metres, is only a small town today except for the Polytechnic. However, up until 1865 there was an important fort standing on the ridge overlooking the road into the town. This fort, known at the time as Dewangiri, was dismantled by the British during the Anglo-Bhutanese War of 1865. The British suffered a humiliating defeat at Deothang and when they recaptured Dewangiri they destroyed much to attempt to compensate.
Sangay Lhendup of Deothang was elected as a National Council minister for Samdrup Jongkhar District in the Bhutanese National Council election, 2007–2008. However Jigme Wangchuk (not the former King) of Lauri Gewog was the winner.