Here is a rough comparison of how the GBA stacks up against the other “Bay Regions” in its weight class.
| Greater Bay Area | Tokyo Bay Area | New York Bay Area | SFO Bay Area | |
| Land (km²) | 56,000 | 36,500 | 21,500 | 17,900 |
| Pop. (mn) | 69.6 | 44.0 | 20.2 | 7.7 |
| GDP (US$trn) | 1.6 | 1.9 | 1.7 | 0.8 |
| GDP Per Cap. (US$) | 23,000 | 42,000 | 82,000 | 102,000 |
| Cargo (TEU) | 7,499 | 773 | 625 | 237 |
| Airport Pass. (mn) | 200 | 120 | 130 | 80 |
| % of Nat’l GDP | 11.8% | 37.6% | 9% | 4.2% |
| Services (% of GDP) | 64.9% | 82.3% | 89.4% | 82.8% |