Table 3.
Characteristics of American billionaire entrepreneurs: Geographic region
| Geographic region | No. | Relative to population |
| Northeast | 109 | 1.44 |
| (of which New York) | 76 | 2.85 |
| (of which Massachusetts) | 13 | 1.45 |
| Midwest | 56 | 0.61 |
| South | 104 | 0.71 |
| (of which Texas) | 36 | 1.17 |
| West | 137 | 1.48 |
| (of which California) | 99 | 2.02 |
Entrepreneurs are assigned to states based on Forbes’ designation. If Forbes did not specify a state, this is based on residence. Relative to population is defined as the share of total entrepreneurs divided by the population share of state/region in 1996–2009.