| Index | Shelter Island | New York | National |
| Income per capita | $72,757 | $51,391 | $44,883 |
| Median household income | $147,893 | $89,985 | $81,333 |
| Median income owner occupied | $187,307 | $125,982 | $106,172 |
| Median income renter occupied | $0 | $58,659 | $52,080 |
| Median earnings male | $115,814 | $59,465 | $54,343 |
| Median earnings female | $118,279 | $44,739 | $38,439 |
| Unemployment rate | 0.0% | 5.0% | 4.9% |
| Poverty level | 8.8% | 15.5% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 12.7% | 12.7% |
| Wholesale & retail services | 3.9% | 3.9% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 12.0% | 12.0% |
| Education, health & social services | 6.3% | 6.3% |
| Other | 65.2% | 65.2% |
| City | Population | Household Income | National Avg. |
| Water Mill, NY | 1,911 | $257,703 | 216.8% |
| Northwest Harbor, NY | 4,302 | $244,151 | 200.2% |
| Wainscott, NY | 349 | $224,428 | 175.9% |
| North Haven, NY | 884 | $212,458 | 161.2% |
| Amagansett, NY | 530 | $206,844 | 154.3% |
| Shelter Island, NY | 2,020 | $147,893 | 81.8% |
| City | Population | Household Income | National Avg. |
| Waldport, OR | 2,020 | $71,303 | 12.3% |
| Maple Creek, SK | 2,020 | n/a | |
| Cienega Springs, AZ | 2,021 | $64,630 | 20.5% |
| Gila Bend, AZ | 2,019 | $61,592 | 24.3% |
| Mackinaw, IL | 2,019 | $98,678 | 21.3% |
| Shelter Island, NY | 2,020 | $147,893 | 81.8% |