| Index | Shelter Island Heights | New York | National |
| Cost of living | 206 | 121 | 100 |
| Groceries | 104 | 106 | 100 |
| Health care | 112 | 110 | 100 |
| Housing | 431 | 144 | 100 |
| Transportation | 109 | 113 | 100 |
| Utilities | 109 | 112 | 100 |
| Lifestyle & Entertainment | 115 | 111 | 100 |
| Household Items | 108 | 106 | 100 |
| Education & Childcare | 122 | 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 | $181,435 | $15,120 | $4,233 | $5,444 |
| 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. |
| Dering Harbor, NY | 0 | 110 | 10.2% |
| Northville village, NY | 1,040 | 101 | 0.9% |
| Clinton, CT | 3,418 | 119 | 18.9% |
| Westbrook Center, CT | 2,322 | 127 | 27.4% |
| Flanders, NY | 5,277 | 131 | 30.7% |
| Shelter Island Heights, NY | 791 | 206 | 106.4% |
| City | Population | Cost of Living Index | National Avg. |
| Chilchinbito, AZ | 791 | 77 | 22.8% |
| Essex, IA | 791 | 80 | 19.6% |
| Hazleton, IA | 791 | 81 | 18.6% |
| Mount Hope, KS | 791 | 87 | 12.5% |
| Claremont, MN | 791 | 87 | 12.9% |
| Shelter Island Heights, NY | 791 | 206 | 106.4% |