How many people in the UK and Hertfordshire live with dementia?

There are approximately 850,000 people in the UK currently living with dementia. In Hertfordshire, it is estimated that 15,000 people are living with dementia. It is also estimated that there are approximately 600 people living with young or early onset dementia in Hertfordshire also. But please bear in mind that there are still many people who do not have, or wish to have, a diagnosis of dementia and are therefore not captured by these statistics