I actually dont buy this list, I think there are many more Billionaires in the US not counted because of Forbes strange criteria but these are the numbers that we have.
The Golden State is home to 95 Billionaires, out of 946 total worldwide. According to Forbes 2007 Index of World Billionaires.
Far Northern California-1 Billionaire
Archie Aldis Emmerson-Anderson $1.6 Billion
Central Valley-3 Billionaires
Ernest Gallo-Modesto $1.3 Billion
Alexander Spanos-Stockton $1.1 Billion
Joyce Raley Teel-Sacramento $1.1 Billion
Los Angeles Area-42 Billionaires
Kirk Kerkorian-Los Angeles-$15 Billion
Donald Bren-Newport Beach $8.5 Billion
Sumner Redstone-Beverly Hills $8.0 Billion
Eli Broad-Los Angeles $6.0 Billion
Bradley Hughes-Malibu $5.3 Billion
David Geffen-Los Angeles $4.7 Billion
David Murdock-Los Angeles $4.2 Billion
Jeffrey Skoll-Los Angeles $4.2 Billion
Patrick Soon-Shiong-Los Angeles $3.5 Billion
Steven Udvar-Hazy-Beverly Hills $3.2 Billion
A. Jerrold Perenchio-Bel Air $3.0 Billion
Steven Spielberg-Pacific Palisades $3.0 Billion
Haim Saban-Beverly Hills $2.8 Billion
Roland Arnall-Holmby Hills $2.5 Billion
Ronald Burkle-Los Angeles $2.5 Billion
Alfred Mann-Los Angeles $2.5 Billion
Henry Nichols III-Laguna Hills $2.2 Billion
Franklin Booth Jr-Los Angeles $2.1 Billion
Michael Milken-Beverly Hills $2.1 Billion
Henry Samueli-Newport Beach $2.1 Billion
Tom Gores-Beverly Hills $2.0 Billion
David Hearst Jr-Los Angeles $2.0 Billion
George Hearst Jr-Los Angeles $2.0 Billion
Anthony Pritzker-Los Angeles $2.0 Billion
John Anderson-Bel Air $1.9 Billion
Charles Munger-Los Angeles $1.9 Billion
Edward Roski Jr-Los Angeles $1.8 Billion
George Aryros-Newport Beach $1.7 Billion
Louis Gonda-Beverly Hills $1.7 Billion
Alan Casden-Beverly Hills $1.6 Billion
Igor Olenicoff-Newport Beach $1.6 Billion
Leslie Gonda-Beverly Hills $1.4 Billion
Gary Michelson-Los Angeles $1.4 Billion
Robert Day-Los Angeles $1.3 Billion
Roy Disney-Los Angeles $1.3 Billion
William Hilton-Los Angeles $1.3 Billion
Timothy Blixseth-Rancho Mirage $1.2 Billion
Alec Gores-Beverly Hills $1.2 Billion
William Gross-Laguna Beach $1.2 Billion
George Joseph-Los Angeles $1.1 Billion
Jonathan Lovelace-Los Angeles $1.1 Billion
Michael Eisner-Los Angeles $1.0 Billion
Santa Barbara County-1 Billionaire
Thomas Barrack-Santa Barbara $1.0 Billion
San Diego Area-4 Billlionaires
Ernest Rady-San Diego $2.2 Billion
Charles Brandes-San Diego $2.0 Billion
Irwin Jacobs-La Jolla $1.7 Billion
Theodore Waitt-San Diego $1.7 Billion
San Francisco Bay Area-44 Billionaires
Lawrence Ellison-Woodside $21.5 Billion
Sergey Brin-Palo Alto $16.6 Billion
Larry Page-San Francisco $16.6 Billion
Eric Schmidt-Atherton $6.2 Billion
Steve Jobs-Palo Alto $5.7 Billion
Charles Johnson-San Mateo $5.6 Billion
Charles Schwab-Atherton $5.2 Billion
Rupert Johnson Jr-San Mateo $4.6 Billion
George Lucas-Marin $3.6 Billion
Gordon Moore-Woodside $3.6 Billion
Riley Bechtel-San Francisco $2.7 Billion
Steven Bechtel Jr-San Francisco $2.7 Billion
George Roberts-San Francisco $2.6 Billion
Ray Dolby-San Francisco $2.5 Billion
David Filo-Palo Alto $2.5 Billion
John Sobrato-Atherton $2.4 Billion
Gordon Getty-San Francisco $2.3 Billion
Jess Jackson-Healdsburg $2.2 Billion
Jerry Yang-Los Altos $2.2 Billion
William Randolph Hearst III-San Francisco $2.1 Billion
Omid Kordestani-Atherton $2.1 Billion
Phoebe Hearst Cooke-San Francisco $2.0 Billion
Daniel Pritzker-Marin $2.0 Billion
John Pritzer-San Francisco $2.0 Billion
Andreas von Bechtolsheim-Palo Alto $1.9 Billion
John Morgridge-Portola Valley $1.8 Billion
Kavitark Shriram-Mountain View $1.7 Billion
John J Fisher-San Francisco $1.5 Billion
Robert Naify-San Francisco $1.5 Billion
Thomas Siebel-San Mateo $1.5 Billion
David Cheriton-Mountain View $1.4 Billion
Scott Cook-Woodside $1.4 Billion
Robert Fisher-San Francisco $1.4 Billion
William Fisher-San Francisco $1.4 Billion
Carl Berg-Atherton $1.3 Billion
Kenneth Fisher-Woodside $1.3 Billion
Manny Mashouf-Brisbane $1.3 Billion
Margaret Whitman-Atherton $1.3 Billion
Marc Benioff-San Francisco $1.0 Billion
Weili Dai-Los Altos Hills $1.0 Billion
L John Doerr-Woodside $1.0 Billion
Richard Perry-Palo Alto $1.0 Billion
Arthur Rock-San Francisco $1.0 Billion
Sehat Sutardja-Los Altos Hills $1.0 Billion
http://www.forbes.com/2007/03/07/bil...llie_land.html