Dewathang is located in
Samdrup Jongkhar District at an altitude of 870 metres (2855 feet).[3] It is 18 km away from the Dzongkhag Administration.The Gewog is bordered by Orong Gewog in the North, Phuntshothang Gewog in the East, Pemagatshel Dzongkhag in the West and Assam in the South. It consists of 23 villages with 352 households with a total population of 3091.