| Index | Sag Harbor | New York | National |
| Cost of living | 250 | 121 | 100 |
| Groceries | 104 | 106 | 100 |
| Health care | 108 | 110 | 100 |
| Housing | 579 | 144 | 100 |
| Transportation | 111 | 113 | 100 |
| Utilities | 112 | 112 | 100 |
| Lifestyle & Entertainment | 109 | 111 | 100 |
| Household Items | 104 | 106 | 100 |
| Education & Childcare | 115 | 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 | $199,475 | $16,623 | $4,654 | $5,985 |
| Renters | $75,712 | $6,309 | $1,766 | $2,272 |
| 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% |
| Mattituck, NY | 5,017 | 152 | 52.1% |
| Hampton Bays, NY | 15,184 | 153 | 53.4% |
| Greenport West, NY | 2,270 | 156 | 55.9% |
| Sag Harbor, NY | 2,034 | 250 | 149.8% |
| City | Population | Cost of Living Index | National Avg. |
| Jemez Pueblo, NM | 2,034 | 88 | 12.3% |
| Clinton, NY | 2,034 | 109 | 9.1% |
| Butler, WI | 2,034 | 95 | 4.6% |
| Sandy Lake 88, ON | 2,034 | n/a | |
| Hull, IA | 2,033 | 93 | 6.6% |
| Sag Harbor, NY | 2,034 | 250 | 149.8% |