| Index | Cos Cob | Connecticut | National |
| Income per capita | $112,469 | $58,644 | $44,883 |
| Median household income | $200,454 | $105,898 | $81,333 |
| Median income owner occupied | $288,091 | $143,532 | $106,172 |
| Median income renter occupied | $94,051 | $56,168 | $52,080 |
| Median earnings male | $118,860 | $67,487 | $54,343 |
| Median earnings female | $79,293 | $47,151 | $38,439 |
| Unemployment rate | 4.5% | 5.6% | 4.9% |
| Poverty level | 6.7% | 10.4% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 16.8% | 16.8% |
| Manufacturing sector | 6.1% | 6.1% |
| Financial & insurance services | 20.2% | 20.2% |
| Wholesale & retail services | 3.8% | 3.8% |
| Public administration | 3.6% | 3.6% |
| Transportation, warehousing & utilities | 3.4% | 3.4% |
| Education, health & social services | 5.5% | 5.5% |
| Other | 31.9% | 31.9% |
| City | Population | Household Income | National Avg. |
| Laurel Hollow, NY | 2,019 | $379,136 | 366.2% |
| Scarsdale, NY | 18,390 | $378,602 | 365.5% |
| Sands Point, NY | 2,894 | $376,615 | 363.1% |
| Cold Spring Harbor, NY | 2,967 | $371,740 | 357.1% |
| Huntington Bay, NY | 1,646 | $365,621 | 349.5% |
| Cos Cob, CT | 7,278 | $200,454 | 146.5% |
| City | Population | Household Income | National Avg. |
| Archbald, PA | 7,275 | $78,606 | 3.4% |
| St. Augustine Beach, FL | 7,271 | $126,554 | 55.6% |
| Cottage Grove, WI | 7,270 | $146,986 | 80.7% |
| Hudson Falls, NY | 7,286 | $74,689 | 8.2% |
| Clarkston Heights-Vineland, WA | 7,286 | $126,753 | 55.8% |
| Cos Cob, CT | 7,278 | $200,454 | 146.5% |