The Doheny Mansion, once home to one of Los Angeles' wealthiest families. Now part of the campus of Mount St. Mary's University.
According to Forbes Magazine, California is home to 96 people who each, in 2018, has a personal net worth of $2.1 billion or more. Of these, 28 reside in Los Angeles County, the highest concentration in any of the state's counties. The combined wealth of Los Angeles County's billionaires in 2018 came to $122 billion, about 20 percent of the wealth of Forbes' list of California's billionaires.
| Name | Net Worth (Billion) (1) | Age | Residence | Source of Wealth | National Rank 2 | California Rank 2 |
|---|---|---|---|---|---|---|
| Elon Musk | $19.6 | 47 | Los Angeles | Tesla Motors | 21 | 5 |
| Patrick Soon-Shiong | $9.0 | 66 | Los Angeles | Pharmaceuticals | 55 | 12 |
| David Geffen | $8.7 | 75 | Malibu | Entertainment | 63 | 13 |
| Eli Broad | $6.7 | 85 | Los Angeles | Investments | 71 | 15 |
| John Tu | $5.6 | 77 | Rolling Hills | Computer Hardware | 87 | 18 |
| Edward Roski, Jr. | $5.6 | 79 | Los Angeles | Real Estate | 97 | 20 |
| Sumner Redstone | $4.8 | 95 | Beverly Hills | Media | 115 | 22 |
| Tamara Gustavson & Family | $4.6 | 56 | Malibu | Self Storage | 122 | 24 |
| Rick Caruso | $3.9 | 59 | Brentwood (Los Angeles) | Real Estate | 179 | 29 |
| Steven Udvar-Hazy | $4.0 | 72 | Beverly Hills | Aircraft Leasing | 179 | 29 |
| Name | Net Worth (Billion) (1) | Age | Residence | Source of Wealth | National Rank 2 | California Rank 2 |
| Stewart & Lynda Resnick | $5.6 | - | Beverly Hills | Agriculture, Water | 179 | 29 |
| Michael Milken | $3.7 | 72 | Los Angeles | Investments | 200 | 31 |
| Tom Gores | $3.9 | 54 | Beverly Hills | Private Equity | 200 | 31 |
| Steven Spielberg | $3.7 | 71 | Pacific Palisades (Los Angeles) | Motion Picures | 206 | 32 |
| Donald Sterling | $3.6 | 84 | Beverly Hills | Real Estate | 212 | 33 |
| Anthony Pritzker | $3.3 | 57 | Los Angeles | Hotels, Investments | 219 | 34 |
| Haim Saban | $2.9 | 73 | Beverly Hills | TV Network, Investments | 240 | 36 |
| Bobby Murphy | $2.3 | 30 | Venice (Los Angeles) | Snapchat | 248 | 37 |
| Evan Spiegel | $2.3 | 28 | Los Angeles | Snapchat | 248 | 37 |
| Kieu Hoang | $1.6 | 74 | Los Angeles | Pharmaceuticals | 278 | 39 |
| Name | Net Worth (Billion) (1) | Age | Residence | Source of Wealth | National Rank 2 | California Rank 2 |
| Do Won & Jin Sook Chang | $2.9 | 62 | Beverly Hills | Forever 21 | 302 | 41 |
| Don Hankey | $3.2 | 75 | Malibu | Auto Loans | 302 | 41 |
| Eric Smidt | $3.1 | 58 | Beverly Hills | Harbor Freight Tools | 374 | 47 |
| Sean Parker | $2.7 | 38 | Los Angeles | 315 | 42 | |
| Alec Gores | $2.1 | 65 | Beverly Hills | Private Equity | 359 | 46 |
| Sarah MacMillan 3 | $2.1 | 64 | Los Angeles (Los Angeles) | Cargill | (See Note 3) | (See Note 3) |
| Bruce Karsh | $2.0 | 62 | Los Angeles | Private Equity | 374 | 47 |
| Nicolas Berggruen 3 | $1.8 | 60 | Beverly Hills | Investments | (See Note 3) | (See Note 3) |
1) These wealth figures are for September 2018.
2) Ranking according to Forbes 400 Richest Americans List, 2018. Ranking based upon wealth figures earlier than September 2018.
3) Not listed in the 2018 list of Forbes 400 Richest Americans.
Source: Forbes Magazine
