Based on the 2007 Census conducted by the CSA, this Zone has a total population of 2,271,609, an increase of 50.12% over the 1994 census, of whom 636,986 are men and 634,623 women; with an area of 15,135.33 square kilometers, Illubabor has a population density of 84.02. While 124,428 or 12.16% are urban inhabitants, a further 68 persons are pastoralists. A total of 272,555 households were counted in this Zone, which results in an average of 4.67 persons to a household, and 263,731 housing units. The two largest ethnic groups reported in Illubabor were the
Oromo (92.67%) and the
Amhara (4.37%); all other ethnic groups made up 2.96% of the population.
Oromiffa was spoken as a first language by 90.68% and 7.08% spoke
Amharic; the remaining 2.24% spoke all other primary languages reported. The majority of the inhabitants were
Muslim, with 50.6% of the population having reported they practiced that belief, while 26.51% of the population practiced
Ethiopian Orthodox Christianity and 22.51% professed
Protestantism. The 1994 national census reported a total population for this Zone of 847,048 in 187,867 households, of whom 416,456 were men and 430,592 women; 80,290 or 9.48% of its population were urban dwellers at the time. The three largest ethnic groups reported in Illubabor were the
Oromo (85.4%), the
Amhara (7.34%), and the
Tigrayan (1.26%); all other ethnic groups made up 6% of the population.
Oromiffa was spoken as a first language by 89.86%, 6.26%
Amharic, and 1.09% spoke
Tigrinya; the remaining 2.79% spoke all other primary languages reported. The majority of the inhabitants professed
Ethiopian Orthodox Christianity, with 45.81% of the population having reported they practiced that belief, while 42.63% of the population said they were
Muslim, 9.78% were
Protestant, and 1.3% held traditional beliefs. According to a May 24, 2004
World Bank memorandum, 9% of the inhabitants of Illubabor have access to electricity, this zone has a road density of 43.2 kilometers per 1000 square kilometers (compared to the national average of 30 kilometers), the average rural household has 1.1 hectare of land (compared to the national average of 1.01 hectare of land and an average of 1.14 for the Oromia Region) and the equivalent of 0.6 heads of livestock. 14.7% of the population is in non-farm related jobs, compared to the national average of 25% and a Regional average of 24%. Concerning
education, 84% of all eligible children are enrolled in primary school, and 23% in secondary schools. Concerning
health, 94% of the zone is exposed to
malaria, and 100% to
Tsetse fly. The memorandum gave this zone a drought risk rating of 296. == Notes ==