North Mugirango is one of four constituencies in Nyamira County.
The name was changed to Borabu / North Mugirango Constituency in 1974.
In 1987 the name changed back to North Mugirango.
[1] Prior to 2013, North Mugirango Borabu Constituency had thirteen wards: Bomwagamo, Central, Ekerenyo, Ensakia, Esise, Kiangeni, Kiabonyoru, Mageri, Magwagwa, Manga, Matutu, Mekenene and Nyaramba.
[3] However, ward boundaries and some of the names were revised to: Bomwagamo, Bokeira, Ekerenyo, Itibo and Magwagwa.