| Index | Southampton | New York | National |
| Cost of living | 281 | 121 | 100 |
| Groceries | 104 | 106 | 100 |
| Health care | 108 | 110 | 100 |
| Housing | 682 | 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 | $227,109 | $18,926 | $5,299 | $6,814 |
| Renters | $70,857 | $5,905 | $1,653 | $2,126 |
| 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% |
| Riverside village, NY | 634 | 93 | 6.8% |
| Northville village, NY | 1,040 | 101 | 0.9% |
| Flanders, NY | 5,277 | 131 | 30.7% |
| Riverhead, NY | 14,287 | 133 | 32.7% |
| Southampton, NY | 3,397 | 281 | 180.8% |
| City | Population | Cost of Living Index | National Avg. |
| Woodlawn Beach, FL | 3,396 | 124 | 24.0% |
| Saint-Pascal, QC | 3,396 | n/a | |
| Plainview, MN | 3,395 | 95 | 5.1% |
| Manor, PA | 3,399 | 104 | 3.6% |
| Reliez Valley, CA | 3,394 | 223 | 122.6% |
| Southampton, NY | 3,397 | 281 | 180.8% |