| Index | Commack | New York | National |
| Income per capita | $89,026 | $51,391 | $44,883 |
| Median household income | $218,642 | $89,985 | $81,333 |
| Median income owner occupied | $232,780 | $125,982 | $106,172 |
| Median income renter occupied | $79,250 | $58,659 | $52,080 |
| Median earnings male | $120,554 | $59,465 | $54,343 |
| Median earnings female | $67,503 | $44,739 | $38,439 |
| Unemployment rate | 2.6% | 5.0% | 4.9% |
| Poverty level | 2.0% | 15.5% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 8.4% | 8.4% |
| Manufacturing sector | 8.5% | 8.5% |
| Financial & insurance services | 10.4% | 10.4% |
| Wholesale & retail services | 18.2% | 18.2% |
| Public administration | 6.3% | 6.3% |
| Transportation, warehousing & utilities | 6.4% | 6.4% |
| Education, health & social services | 13.7% | 13.7% |
| Other | 24.7% | 24.7% |
| City | Population | Household Income | National Avg. |
| Laurel Hollow, NY | 2,019 | $379,136 | 366.2% |
| Old Field, NY | 949 | $377,288 | 363.9% |
| Brookville, NY | 3,716 | $373,481 | 359.2% |
| Cold Spring Harbor, NY | 2,967 | $371,740 | 357.1% |
| Huntington Bay, NY | 1,646 | $365,621 | 349.5% |
| Commack, NY | 38,358 | $218,642 | 168.8% |
| City | Population | Household Income | National Avg. |
| Carpentersville, IL | 38,383 | $109,560 | 34.7% |
| Cottage Grove, MN | 38,398 | $150,702 | 85.3% |
| Muskegon, MI | 38,255 | $53,631 | 34.1% |
| Meridian, MS | 38,491 | $45,599 | 43.9% |
| Mechanicsville, VA | 38,496 | $113,563 | 39.6% |
| Commack, NY | 38,358 | $218,642 | 168.8% |