According to Barclays Premier Banking there are now one million individuals in England and Wales who earn £100,000+ a year.

The top 20 richest areas are:

1 - Kensington and Chelsea, London, average income £101,600 a year
2 - Cities of London and Westminster, London, average income £81,425 a year
3 - Hampstead and Highgate, London, average income £77,500 a year
4 - Beaconsfield, south-east, average income £74,375 a year
5 - Richmond Park, London, average income £71,925 a year
6 - Esher and Walton, south-east, average income £71,800 a year
7 - Mole Valley, south-east, average income £71,500 a year
8 - South West Surrey, south-east, average income £67,825 a year
9 - Maidenhead, south-east, average income £64,650 a year
10 - Tonbridge and Malling, south-east, average income £63,550 a year
11 - North East Hampshire, south-east, average income £63,475 a year
12 - Finchley and Golders Green, London, average income £63,200 a year
13 - Tatton, north-west, average income £62,350 a year
14 - Chesham and Amersham, south-east, average income £62,075 a year
15 - Hammersmith and Fulham, London, average income £61,325 a year
16 - Reigate, south-east, average income £60,900 a year
17 - The Cotswolds, south-west, average income £60,800 a year
18 - South West Hertfordshire, south-east, average income £59,725 a year
19 - Twickenham, London, average income £59,675 a year
20 - Sevenoaks, south-east, average income £59,600 a year