Prevalence and Costs


There are currently 4.5 million people living with diabetes in the UK:

  • Diagnosed: 3.5 million people in the UK have been diagnosed with diabetes.
  • Undiagnosed: It is estimated that 1.1 million people have diabetes but don’t know it yet.

In 2015, the prevalence of diabetes in the adult population across the UK was as follows:

Country Number of people
England 2,913,538
Northern Ireland 84,836
Scotland 271,312
Wales 183,348


  • Internationally, there were approximately 415 million people living with diabetes in 2015 and this figure could further rise to 642 million by 2040. 
  • It is estimated globally that 1 in 2 adults with Type 2 diabetes are undiagnosed.

The International Diabetes Federation (IDF) estimated that in 2015 seven countries had more than 10 million people with diabetes: China, India, the United States of America, Brazil, the Russian Federation, Mexico and Indonesia.


  • 10 per cent of the NHS budget is spent on diabetes and its complications. This is just under £10 billion per year working at around:
    • £192 million a week
    • £27 million a day
    • £1 million an hour
    • £19,000 a minute
    • £315 a second.
  • The total cost (direct care and indirect costs) associated with diabetes in the UK currently stands at £23.7 billion.