| Index | Central Islip | New York | National |
| Income per capita | $29,218 | $34,212 | $29,829 |
| Median household income | $79,645 | $60,741 | $55,322 |
| Median income owner occupied | $95,445 | $83,277 | $70,586 |
| Median income renter occupied | $46,592 | $38,983 | $35,192 |
| Median earnings male | $34,399 | $40,464 | $36,919 |
| Median earnings female | $30,623 | $30,906 | $26,250 |
| Unemployment rate | 2.6% | 4.8% | 4.7% |
| Poverty level | 9.4% | 15.5% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 12.9% | 12.9% |
| Manufacturing sector | 10.9% | 10.9% |
| Financial & insurance services | 0.9% | 0.9% |
| Wholesale & retail services | 15.7% | 15.7% |
| Public administration | 5.2% | 5.2% |
| Transportation, warehousing & utilities | 8.1% | 8.1% |
| Education, health & social services | 13.7% | 13.7% |
| Other | 30.6% | 30.6% |
| City | Population | Household Income | National Avg. |
| Huntington Bay, NY | 1,614 | $250,001 | 351.9% |
| Cold Spring Harbor, NY | 2,864 | $250,001 | 351.9% |
| Laurel Hollow, NY | 1,967 | $250,001 | 351.9% |
| Old Field, NY | 915 | $250,000 | 351.9% |
| Head of the Harbor, NY | 1,454 | $215,833 | 290.1% |
| Central Islip, NY | 33,591 | $79,645 | 44.0% |
| City | Population | Household Income | National Avg. |
| Mason, OH | 33,592 | $104,462 | 88.8% |
| Deer Park, TX | 33,599 | $75,838 | 37.1% |
| Huntington Station, NY | 33,612 | $99,774 | 80.4% |
| DeLand, FL | 33,620 | $54,397 | 1.7% |
| Myrtle Beach, SC | 33,638 | $43,378 | 21.6% |
| Central Islip, NY | 33,591 | $79,645 | 44.0% |