| Index | Harbor Isle | New York | National |
| Cost of living | 154 | 121 | 100 |
| Groceries | 106 | 106 | 100 |
| Health care | 111 | 110 | 100 |
| Housing | 257 | 144 | 100 |
| Transportation | 112 | 113 | 100 |
| Utilities | 109 | 112 | 100 |
| Lifestyle & Entertainment | 111 | 111 | 100 |
| Household Items | 103 | 106 | 100 |
| Education & Childcare | 118 | 118 | 100 |

| Cost of living index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $226,315 | $18,860 | $5,280 | $6,790 |
| Renters | $0 | $0 | $0 | $0 |
| State | General Sales Tax | With Max Surtax |
| New York | 4% | 8.875% |
| State | Income Tax (Low) | Income Tax (High) |
| New York | 4% | 10.9% |
| City | Population | Cost of Living Index | National Avg. |
| Hempstead, NY | 56,908 | 131 | 30.5% |
| North Lindenhurst, NY | 11,096 | 131 | 30.8% |
| Copiague, NY | 23,901 | 131 | 31.3% |
| Roslyn, NY | 2,998 | 132 | 32.2% |
| North Amityville, NY | 19,627 | 133 | 32.5% |
| Harbor Isle, NY | 1,029 | 154 | 54.2% |
| City | Population | Cost of Living Index | National Avg. |
| Mansfield, IL | 1,029 | 93 | 6.7% |
| Clayton, IN | 1,029 | 94 | 5.7% |
| Bloomville, OH | 1,029 | 81 | 19.2% |
| Greenville, GA | 1,030 | 86 | 14.3% |
| Jeffersonville, GA | 1,028 | 81 | 18.9% |
| Harbor Isle, NY | 1,029 | 154 | 54.2% |