Mackintosh retired at the 2017 snap election after just one Parliament, after facing the prospect of being deselected by his local constituency party, and Andrew Lewer took over with a decreased majority from 2015 of over 1,000.

[3] 1983–1997: The Borough of Northampton wards of Billing, Castle, Delapre, Nene Valley, New Duston, Old Duston, St Crispin, South, and Weston, and the District of South Northamptonshire wards of Blisworth, Brafield, Bugbrooke, Cogenhoe, Gayton, Hackleton, Harpole, Heyford, Kislingbury, Milton, Roade, Salcey, and Yardley.

Following the 2010 redistribution which created South Northamptonshire, the constituency was once again entirely within the Borough of Northampton as opposed to 1983 to 2010 when it also took in outlying rural parts outside the town.

The constituency has income, social housing and unemployment statistics[6] close to the national average and a varied and dynamic service and engineering-centred economy typical of the East Midlands with significant foodstuffs, clothing and consumables manufacturing and processing operations.

[8] Additionally, the constituency is "considerably worse than [the] England average" in violent crime, self harm, under 18 conception and GCSE achievement.