The north of the county could be made up to £200m worse off by the forthcoming high speed rail network upgrades, according to previously unseen research.
HS2 is a planned new railway between London and Leeds, which is designed to operate at speeds of up to 225mph and which will dramatically cut journey times between the north and south of the country.
The high-speed line is due to open in 2026 and the plan has been lauded by the Government as a boost to the economy.
However research by accountants KPMG, which was not included in the original report, has revealed that dozens of areas across the UK will be made worse off.
According to the statistics, the Corby Council area could be made up to £84m worse off, East Northamptonshire up to £28m, Kettering £50m and Wellingborough £39m.
The KPMG report said the line could boost the UK economy by £15bn a year.
However, the areas which would lose out in the upgrade were only revealed after a Freedom of Information request was submitted to obtain the full research.
Greater London and the West Midlands will be the biggest beneficiaries of HS2, according to the research, and will see their economies improved by billions of pounds.