 The district was created in 1900 and was based upon the earlier "Municipal Borough of Warrington", which had, in turn, been based on the older ancient borough of Warrington.This had received its charter in 1847.These earlier local government districts had crossed the county boundary line and contained small parts of parishes in Cheshire, namely, Latchford and Thelwall though these anomalies were rectified in 1894 and 1884, respectively.