| Index | Sea Cliff | New York | National |
| Income per capita | $88,129 | $34,212 | $29,829 |
| Median household income | $156,776 | $60,741 | $55,322 |
| Median income owner occupied | $164,464 | $83,277 | $70,586 |
| Median income renter occupied | $64,696 | $38,983 | $35,192 |
| Median earnings male | $100,227 | $40,464 | $36,919 |
| Median earnings female | $41,148 | $30,906 | $26,250 |
| Unemployment rate | 7.6% | 4.8% | 4.7% |
| Poverty level | 3.6% | 15.5% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 2.3% | 2.3% |
| Manufacturing sector | 3.7% | 3.7% |
| Financial & insurance services | 12.7% | 12.7% |
| Wholesale & retail services | 6.6% | 6.6% |
| Public administration | 5.8% | 5.8% |
| Transportation, warehousing & utilities | 5.9% | 5.9% |
| Education, health & social services | 22.2% | 22.2% |
| Other | 32.8% | 32.8% |
| City | Population | Household Income | National Avg. |
| Hewlett Bay Park, NY | 351 | $250,001 | 351.9% |
| Roslyn Estates, NY | 1,385 | $250,001 | 351.9% |
| Cold Spring Harbor, NY | 2,864 | $250,001 | 351.9% |
| Laurel Hollow, NY | 1,967 | $250,001 | 351.9% |
| Brookville, NY | 3,599 | $250,001 | 351.9% |
| Sea Cliff, NY | 5,045 | $156,776 | 183.4% |
| City | Population | Household Income | National Avg. |
| Maize, KS | 5,044 | $59,856 | 8.2% |
| Clarkson, NY | 5,046 | $61,050 | 10.4% |
| Alva, OK | 5,046 | $46,929 | 15.2% |
| Delhi Hills, OH | 5,041 | $92,301 | 66.8% |
| Orford, QC | 5,049 | n/a | |
| Sea Cliff, NY | 5,045 | $156,776 | 183.4% |
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