My neighbors here in the Canton of Vaud. A Canton is somewhere like a cross between a big county or a small state in the US. Each Canton has its own tax policy, and evidently, the tax laws in Vaud are good for the wealthy! I think we have the highest concentration of billionaires in the world. I never see them though, unless they are camouflaged as "regular joes/janes" like the Ikea guy.

Vaud Canton Fortunes

• Ingvar Kamprad: 14 to 15 billion
  At 76, the founder of Ikea is reputed to be a penny-pincher. Bilan magazine calls him "the Scrooge of the North" as he regularly goes grocery shopping at the discount store Migros in Romanel-sur-Lausanne. And he does it in a very modest fashion, showing no outward signs of his wealth or a brigade of bodyguards. He drives an old Volvo, lives in an ordinary house on a small piece of property, and flies economy class. He just announced that he will retire from the leading Swedish furniture company. His sons are getting ready to take over the fort.
  
• Birgit Rausing: 13 to 14 billion
  Widow of Gad Rausing, son of the founder of packing company Tetra Pak (now called Tetra Laval), Birgit Rausing currently lives in an unassuming manner in Montreux, Switzerland. Her three children, Kirsten, Finn et Jörn, now manage the company.
  
• Gisela "Gigi" Oeri: nine to ten billion
  Gigi Oeri, 46, and heiress (by marriage) to the Roche pharmaceutical company, is the brains behind the reorganization of FC Bâle, where she manages the medical department as well as the takeover. Given over to folly whenever the team does brilliantly, this former physiotherapist also founded the Doll Museum in Basel.
  
• Pierre Landolt: seven to eight billion
  Pierre Landolt owes his fortune to his grandfather, who founded the Sandoz chemical company at the end of the 19th century. His father, Marc-Edouard, created the Sandoz Family Foundation in 1964. Pierre Landolt spends most of his spare time on his farm in Brazil.
  
• Ernesto Bertarelli: seven to eight billion
  Still young, rich, and beautiful, the president of Serono is not the richest man in the country. The industrialist consoles himself by being a star athlete. His sailboat "Alinghi" is set to win the Louis-Vuitton Cup, a competition that leads up to the renowned America’s Cup.
  Jean-François Krähenbühl

Ranking of the Other Stars

VAUD
Athina Onassis, shipowner, 4 to 5 billion
Michael Schumacher, Formula 1, 600 to 700 million
André Kudelski, computing, 300 to 400 million
Asher Edelmann, finance, 200 to 300 million
Lamunière Family, Edipresse, 200 to 300 million
Shania Twain, singer, 200 to 300 million
Daniel Borel, Logitech, 100 to 200 million
Phil Collins, musician, 100 to 200 million
Jacques Villeneuve, Formula 1, 100 to 200 million