| Index | Foster City | California | National |
| Income per capita | $111,807 | $45,980 | $44,883 |
| Median household income | $238,926 | $95,535 | $81,333 |
| Median income owner occupied | $247,963 | $130,228 | $106,172 |
| Median income renter occupied | $246,140 | $64,137 | $52,080 |
| Median earnings male | $160,824 | $52,776 | $54,343 |
| Median earnings female | $114,570 | $38,938 | $38,439 |
| Unemployment rate | 2.3% | 6.8% | 4.9% |
| Poverty level | 3.2% | 15.8% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 2.1% | 2.1% |
| Manufacturing sector | 12.1% | 12.1% |
| Financial & insurance services | 6.5% | 6.5% |
| Wholesale & retail services | 8.2% | 8.2% |
| Public administration | 2.0% | 2.0% |
| Transportation, warehousing & utilities | 7.4% | 7.4% |
| Education, health & social services | 7.8% | 7.8% |
| Other | 44.1% | 44.1% |
| City | Population | Household Income | National Avg. |
| Atherton, CA | 7,303 | $377,485 | 364.1% |
| Loyola, CA | 3,526 | $376,752 | 363.2% |
| Hillsborough, CA | 11,923 | $376,687 | 363.1% |
| Norris Canyon, CA | 818 | $375,658 | 361.9% |
| Woodside, CA | 5,786 | $374,998 | 361.1% |
| Foster City, CA | 34,247 | $238,926 | 193.8% |
| City | Population | Household Income | National Avg. |
| Stratford, ON | 34,224 | n/a | |
| Lake Stevens, WA | 34,189 | $138,957 | 70.8% |
| Douglasville, GA | 34,322 | $93,682 | 15.2% |
| Leduc, AB | 34,166 | n/a | |
| Prairieville, LA | 34,153 | $149,705 | 84.1% |
| Foster City, CA | 34,247 | $238,926 | 193.8% |