Ethiopian Atlas
Regional state

Oromia

Harenna Forest in Bale Mountains National Park
Harenna Forest in Bale Mountains National Park · photo: Laika ac from UK, CC BY-SA 2.0 (source)

Oromia is a regional state of Ethiopia, covering 323,035 km² — 28.6% of the national territory, 1st of the 12 regional states by area. Its projected 2022 population is 39,075,002 — about 121 people per km². It comprises 22 zones and 349 woredas (districts). It contains 3 UNESCO World Heritage sites.

Oromia is the largest regional state, wrapping around Addis Ababa and stretching from the western coffee forests across the Rift Valley lakes to the Bale massif. Bale Mountains National Park — Africa's largest expanse of Afro-alpine moorland and a UNESCO World Heritage site since 2023 — protects the Ethiopian wolf and mountain nyala on the Sanetti Plateau.

Sources: Britannica — Oromo · UNESCO — Bale Mountains

Where Oromia sits in Ethiopia

323,035
km²
28.6%
of national territory
22
zones
349
woredas
39,075,002
people (2022 proj.)
121
per km²
1st
by area of 12 states
P-codeET04
Boundary valid from2025-01-01

World Heritage

Tiya
cultural · inscribed 1980
Melka Kunture & Balchit
cultural · inscribed 2024
Bale Mountains
natural · inscribed 2023

Zones

ArsiBaleBorenaBuno BedeleEast BaleEast BorenaEast HarargeEast ShewaEast WellegaGujiHoro Gudru WellegaIlu Aba BoraJimmaKelem WellegaNorth Shewa (OR)Shager CitySouth West ShewaWest ArsiWest GujiWest HarargeWest ShewaWest Wellega

View Oromia on the map →

Every figure on this page is computed from the OCHA COD-AB Ethiopia dataset (April 2026 release, CC BY 3.0 IGO). Richer geographic and historical profiles, with cited sources, arrive in Phase 2.