The constituency, given the official name of Corby, but known locally as Corby & East Northants or CENCA, was created for the 1983 general election due to population increases in the county . Since creation (until the most recent election in 2019) it has been a marginal seat alternating between Labour and the Conservative representatives with marginal majorities relative to national averages on all but two occasions, the 1997 Labour landslide and the 2012 by-election. The first Member of Parliament elected for the constituency was William Powell, who represented the Conservatives for three sessions of Parliament. Labour then won the seat until 2010 when Louise Mensch (formerly Louise Bagshawe) won the seat. Following her resignation an 2012 Labour again won the seat but at the 2015 general election Tom Pursglove standing for the Conservatives won with a small majority. He won again with a similar margin in 2017 and in 2019 Tom Pursglove took the seat for the third time, but with a majority of over 10,000, turning Corby into a non-marginal seat by CCHQ standards.
The Corby Conservative Club built a special extension onto their club in 1983 to provide accommodation for the Association. To show support for the Party the Club charges a peppercorn rent and every member has, since 1981, paid a small annual levy to the Association.
The constituency covers the Borough of Corby, and the District of East Northamptonshire wards of Barnwell, Dryden, Fineshade, Irthlingborough, King's Forest, Lower Nene, Lyveden, Oundle, Prebendal, Raunds Saxon, Raunds Windmill, Ringstead, Stanwick, Thrapston, and Woodford.