East Northamptonshire was from 1974 to 2021 a local government district in Northamptonshire, England. Its council was based in Thrapston and Rushden. Other towns include Oundle, Raunds, Irthlingborough and Higham Ferrers. The town of Rushden was by far the largest settlement in the district. The population of the district at the 2011 Census was 86,765. Much of the district was home to Rockingham Forest, once a Royal hunting forest which takes its name from the village of Rockingham where William I built a castle.