Semien Shewa (or "North Shewa") is one of 10 Zones in the Ethiopian Amhara Region. Semien Shewa takes its name from the kingdom or former province of Shewa. The Zone is bordered on the south and the west by the Oromia Region, on the north by Debub Wollo, on the northeast by the Oromia Zone, and on the east by the Afar Region. The highest point in the Zone is Mount Abuye Meda (4012 meters); other prominent peaks include Mount Megezez. Towns and cities in Semien Shewa include Ankober, Debre Berhan, and Shewa Robit.
The administrative subdivisions of this Zone have been renamed, divided, and their boundaries redrawn numerous times between the 1994 and 2007 national censuses far more often than any other Zone in the Amhara Region. As a result, its subdivisions can be very confusing; Svein Ege, in his comparison of how the Central Statistical Agency (CSA) and the Ethiopian Mapping Authority reported the administrative boundaries in this Zone and how they changed between 1994 and 2004, stopped halfway through this Zone, stating that he had run out of time to perform field checking.
Northern Shewa the Amhara zone is the zone where the former kingdom,province currently zones of shewa all started. The zone is also the launching pad for the expansion and annexation of the rest of southern Ethiopia.For example R.H.Kofi Darkwah writes that "like his father before him, the major conquests of sahla selassie were made in the south and south west." Sahla Selassie is the grandfather of Menilik second. (Shewa Menilek and the Ethiopian Empire(1813-1889) page 26.)
Based on the 2007 Census conducted by the Central Statistical Agency of Ethiopia (CSA), this Zone has a total population of 1,837,490, an increase of 17.72% over the 1994 census, of whom 928,694 are men and 908,796 women; with an area of 15,936.13 square kilometers, Semien Shewa has a population density of 115.30. While 214,227 or 11.66% are urban inhabitants, a further 112 or 0.01% are pastoralists. A total of 429,423 households were counted in this Zone, which results in an average of 4.28 persons to a household, and 413,235 housing units. The three largest ethnic groups reported in Semien Shewa were the Amhara (95.73%), the Oromo (2.14%), and the Argobba (1.71%); all other ethnic groups made up 0.42% of the population. Amharic is spoken as a first language by 96.97%, and 2.32% spoke Oromiffa; the remaining 0.71% spoke all other primary languages reported. 94.71% of the population said they practiced Ethiopian Orthodox Christianity, and 4.91% were Muslim.