This marks a 30% increase in annual kidney cancer diagnoses over the last decade.
Early detection of potential symptoms by GPs offers the ‘best possible chance of survival for patients,’ the charity said.
The figures reveal that 12 in every 100,000 people are diagnosed with kidney cancer each year, making it the eighth most common cancer in the UK.
Experts believe rising obesity levels offer the most likely explanation for the growth in cases, but cite smoking as another risk factor.
Improved early detection using techniques such as ultrasound and CT may also have contributed to the inflated figures.
Professor Tim Eisen of Cancer Research UK said: ‘These figures show a worrying rise in kidney cancer in the last decade and emphasise how crucial more research into better treatments for kidney cancer is.
‘But as well as finding better treatments, more needs to be done to catch this cancer as early as possible. Half of the patients we see are diagnosed incidentally when they have come to their GP for other health problems.’
Kidney cancer can go unnoticed because many patients can lack or are unaware of the potential symptoms, such as blood in urine.
The increase was observed across all age groups, with people aged over 80 showing the sharpest increase.
Each year, around 4,200 people die from kidney cancer.