A road safety watchdog has revealed 305 people were killed or seriously hurt in vehicle accidents in the county last year.
The tally for 2011 was a slight increase on the year before which saw 297 deaths or serious injuries on the roads.
The Government figures were revealed in a report by the Institute for Advanced Motorists (IAM) which found that 50 councils in England saw more than a 10 per cent increase in killed and seriously injured (KSI) crash rates between 2010 and 2011 when compared with 2005 and 2006.
Between 2005 and 2011, 2,841 people have been killed or seriously injured on Northamptonshire’s roads.
The IAM said councils in England slashed their road safety budgets by 15 per cent (£23 million) last year compared to average spending cuts of just six per cent for other council services.
IAM chief executive Simon Best said: “It is concerning that road deaths and serious injuries rose last year. Road accidents usually drop during an economic recession, so this rise after continuous reductions over the last 10 years, is particularly concerning.
“Ministers should take this as a serious warning. Cutting road safety education and reductions in local authority spending all suggest that road safety isn’t a major priority for this government. We need targets on reducing casualties for local councils so that performance can be checked. This would help make sure that councils look at new and innovative ways to save lives on our roads.”