Nyamira District was an administrative district in the Nyanza Province of Kenya. It was split from Kisii District in 1989 and was sometimes referred to as North Kisii District.[1][2] The district had a population of 492,102 (1999 census). Its capital town was Nyamira.[2]
It was later split into three smaller districts of Nyamira, Manga and Borabu; then later the smaller district of Nyamira was split into Nyamira North and Nyamira South districts.[3] As per the 2009 census, the three districts had a combined population of 486,975.[3]
In 2010, after the promulgation of the new constitution of Kenya, counties were created based on the districts of Kenya as of 1992. This effectively led to the creation of Nyamira County.[citation needed]