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Obesity, lack of exercise, poor diet and smoking are to blame, it added.
One public health expert said efforts to prevent and treat the disease should be targeted at the most vulnerable.
As of 2008, there were 2.5 million people diagnosed with diabetes in the UK.
Numbers have been climbing in recent years due to increased efforts to find people who were unaware they had the condition.
It has been predicted that by 2025, there will be more than four million people with diabetes in the UK.
The most common type is type 2 diabetes, which is generally associated with lifestyle factors, such as being overweight.
It is caused by the body not producing enough insulin or when the insulin that is produced does not work properly.
The report also found that women in England who live in homes with the lowest income are more than four times as likely to get diabetes as those who live in homes with the highest income.
And diabetes in Wales is almost twice as high in the most deprived areas compared to the least deprived.
Douglas Smallwood, Diabetes UK chief executive, said action is needed to prevent a generation of people living in deprivation "ending up in an early grave".
Professor Alan Maryon-Davis, president of the UK Faculty of Public Health, said the figures were not surprising as the risk factors for diabetes were very closely associated with deprivation and hard to tackle.
"We do need to target efforts at the most vulnerable."
He added that the national vascular screening programme which started in April and is still gearing up would help diagnose people and help them manage the illness.
"But we need to set up a proper call and recall system, we can't just wait for people to go to the GP, it has to be done in a more active way."
Good idea but, wouldn’t it be better for the Government to ensure that there is enough money for the “deprived”, and force the “Super” Markets to reduce prices, rather than spending billions on treatment?
Angus
Angus Dei on all and sundry
Angus Dei politico