Part of the Mirab (West) Welega Zone, Jimma Gidami was bordered on the south by Anfillo, on the west by South Sudan, on the northwest by the Benishangul-Gumuz Region, on the north by Begi, on the east by Gawo Dale, and on the east by Hawa Welele.
Landmarks included Jubal Gimi, a mountain in the western part of Jimma Gidami.
[1] Based on figures published by the Central Statistical Agency in 2005, this woreda has an estimated total population of 124,530, of whom 62,616 are men and 61,914 are women; 7,041 or 5.65% of its population are urban dwellers, which is less than the Zone average of 10.9%.
The largest ethnic group reported in Jimma Gidami was the Oromo (98.9%).
The majority of the inhabitants observed Ethiopian Orthodox Christianity, with 70.89% reporting that as their religion, while 14.99% were Muslim, and 13.6% Protestant.