The Trans-Nzoia District was an administrative district of Rift Valley Province, Kenya, located between the Nzoia River and Mount Elgon with its centre at the town of Kitale.
The district origin go back when the region was transferred from Uganda in 1902.
In 1919, the colonial authorities split Trans Nzoia from Uasin Gishu District, where two years later, it became an extra-provincial territory.
After independence many of the farms vacated by white settlers were bought by individuals from other ethnic groups in Kenya.
This Rift Valley Province location article is a stub.