| Index | Islip Terrace | New York | National |
| Income per capita | $72,220 | $51,391 | $44,883 |
| Median household income | $199,233 | $89,985 | $81,333 |
| Median income owner occupied | $203,583 | $125,982 | $106,172 |
| Median income renter occupied | $128,615 | $58,659 | $52,080 |
| Median earnings male | $110,971 | $59,465 | $54,343 |
| Median earnings female | $43,970 | $44,739 | $38,439 |
| Unemployment rate | 1.3% | 5.0% | 4.9% |
| Poverty level | 1.6% | 15.5% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 10.6% | 10.6% |
| Manufacturing sector | 18.5% | 18.5% |
| Financial & insurance services | 6.7% | 6.7% |
| Wholesale & retail services | 8.3% | 8.3% |
| Public administration | 4.8% | 4.8% |
| Transportation, warehousing & utilities | 3.2% | 3.2% |
| Education, health & social services | 19.1% | 19.1% |
| Other | 23.5% | 23.5% |
| City | Population | Household Income | National Avg. |
| Old Field, NY | 949 | $377,288 | 363.9% |
| Cold Spring Harbor, NY | 2,967 | $371,740 | 357.1% |
| Huntington Bay, NY | 1,646 | $365,621 | 349.5% |
| Head of the Harbor, NY | 1,506 | $323,823 | 298.1% |
| Belle Terre, NY | 813 | $304,762 | 274.7% |
| Islip Terrace, NY | 5,399 | $199,233 | 145.0% |
| City | Population | Household Income | National Avg. |
| Highwood, IL | 5,399 | $113,182 | 39.2% |
| Calverton, NY | 5,399 | $78,272 | 3.8% |
| North Oaks, MN | 5,400 | $315,984 | 288.5% |
| Palermo, CA | 5,402 | $61,454 | 24.4% |
| Fruitland, MD | 5,402 | $77,557 | 4.6% |
| Islip Terrace, NY | 5,399 | $199,233 | 145.0% |