| Index | Northwest Harbor | New York | National |
| Cost of living | 196 | 121 | 100 |
| Groceries | 107 | 106 | 100 |
| Health care | 109 | 110 | 100 |
| Housing | 401 | 144 | 100 |
| Transportation | 105 | 113 | 100 |
| Utilities | 107 | 112 | 100 |
| Lifestyle & Entertainment | 110 | 111 | 100 |
| Household Items | 103 | 106 | 100 |
| Education & Childcare | 113 | 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 | $265,896 | $22,158 | $6,204 | $7,978 |
| 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% |
| Greenport, NY | 2,113 | 151 | 51.3% |
| Greenport West, NY | 2,270 | 156 | 55.9% |
| Southold, NY | 6,075 | 163 | 62.9% |
| Cutchogue, NY | 3,031 | 165 | 64.5% |
| Northwest Harbor, NY | 4,302 | 196 | 95.5% |
| City | Population | Cost of Living Index | National Avg. |
| Montréal-Est, QC | 4,302 | n/a | |
| Mulberry, OH | 4,301 | 95 | 4.7% |
| Liberty, NY | 4,303 | 96 | 4.3% |
| Fort Defiance, AZ | 4,304 | 77 | 23.1% |
| Broadmoor, CA | 4,304 | 215 | 115.0% |
| Northwest Harbor, NY | 4,302 | 196 | 95.5% |