Suburban Sheffield has the highest percentage of high earners outside London and the South-east, according to research by Barclays' wealth management arm, Barclays Private Clients.
Around 7.9 per cent of the residents of Hallam, a Sheffield suburb which backs on to the Peak District, earn more than £60,000 a year.
Hallam is home to more high-earners than Windsor which has 7.8 per cent, Sevenoaks with 7.7 per cent and Tunbridge Wells with 7.5 per cent of the population.
But the best chance of bumping into an “affluential” comes in Kensington and Chelsea, where 12.5 per cent of people earn over £60,000 a year.
Beaconsfield in Buckinghamshire comes second with 10.9 per cent.
Poplar and Canning Town in London's East End have only 3 per cent of people earning over £60,000 but, of these, over a quarter are under 30.
Outside London, the area with the highest proportion of young affluents is Leeds, where 19.4 per cent of residents earning £60,000 a year are under 30.
Managing director Gordon Rankin says: “It may surprise some people to know that a suburb of Sheffield has so many high earners. However, Sheffield is a big urban centre attracting a lot of professionals and business people and has a higher degree of affluence than one would expect.”