| Index | Islandia | New York | National |
| Income per capita | $36,506 | $34,212 | $29,829 |
| Median household income | $82,500 | $60,741 | $55,322 |
| Median income owner occupied | $90,000 | $83,277 | $70,586 |
| Median income renter occupied | $77,778 | $38,983 | $35,192 |
| Median earnings male | $60,295 | $40,464 | $36,919 |
| Median earnings female | $34,646 | $30,906 | $26,250 |
| Unemployment rate | 1.2% | 4.8% | 4.7% |
| Poverty level | 4.5% | 15.5% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 3.7% | 3.7% |
| Manufacturing sector | 23.3% | 23.3% |
| Financial & insurance services | 3.4% | 3.4% |
| Wholesale & retail services | 19.2% | 19.2% |
| Public administration | 8.2% | 8.2% |
| Transportation, warehousing & utilities | 7.2% | 7.2% |
| Education, health & social services | 8.7% | 8.7% |
| Other | 25.1% | 25.1% |
| City | Population | Household Income | National Avg. |
| Cold Spring Harbor, NY | 2,864 | $250,001 | 351.9% |
| Huntington Bay, NY | 1,614 | $250,001 | 351.9% |
| Old Field, NY | 915 | $250,000 | 351.9% |
| Head of the Harbor, NY | 1,454 | $215,833 | 290.1% |
| Belle Terre, NY | 791 | $204,167 | 269.1% |
| Islandia, NY | 3,315 | $82,500 | 49.1% |
| City | Population | Household Income | National Avg. |
| Goldstream, AK | 3,315 | $70,060 | 26.6% |
| Cutten, CA | 3,315 | $90,772 | 64.1% |
| Moreland Hills, OH | 3,315 | $170,391 | 208.0% |
| Merrickville-Wolford, ON | 3,315 | n/a | |
| Masontown, PA | 3,314 | $46,107 | 16.7% |
| Islandia, NY | 3,315 | $82,500 | 49.1% |
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