Part of the Mirab Gojjam Zone, Dembecha is bordered on the west by Bure, on the northwest by Jabi Tehnan, on the north by Dega Damot, and on the east and south by the Misraq Gojjam Zone.

Rivers in this woreda include the Temchi, over which the Italian Count Salimbeni built the first bridge in Gojjam for Negus Tekle Haymanot in 1884–1885.

[3] Based on the 2007 national census conducted by the Central Statistical Agency of Ethiopia (CSA), this woreda has a total population of 129,260, an increase of 44.50% over the 1994 census, of whom 64,683 are men and 64,577 women; 17,913 or 13.86% are urban inhabitants.

The majority of the inhabitants practiced Ethiopian Orthodox Christianity, with 99.13% reporting that as their religion.

The majority of the inhabitants practiced Ethiopian Orthodox Christianity, with 98.47% reporting that as their religion, while 1.46% were Muslim.