Delo Menna is bordered on the south by Meda Welabu, on the west and northwest by Harena Buluk, on the north by Goba, on the northeast by Berbere, and on the east by Guradamole.
A survey of the land in this woreda shows that 9.8% is arable or cultivable, 29.3% pasture, 56.5% forest or other heavy vegetation, and the remaining 4.1% is considered swampy, degraded or otherwise unusable.
The statistics for road coverage and access to drinking water are not available for Mennana Harena Buluk.
[3] Based on figures published by the Central Statistical Agency in 2005, this woreda has an estimated total population of 114,627, of whom 56,493 are men and 58,134 are women; 14,289 or 12.47% of its population are urban dwellers, which is less than the Zone average of 13.5%.
With an estimated area of 6,680.94 square kilometers, Mennana Harena Buluk has an estimated population density of 17.2 people per square kilometer, which is less than the Zone average of 27.