| Index | Northport | New York | National |
| Cost of living | 165 | 121 | 100 |
| Groceries | 105 | 106 | 100 |
| Health care | 111 | 110 | 100 |
| Housing | 297 | 144 | 100 |
| Transportation | 111 | 113 | 100 |
| Utilities | 110 | 112 | 100 |
| Lifestyle & Entertainment | 106 | 111 | 100 |
| Household Items | 105 | 106 | 100 |
| Education & Childcare | 114 | 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 | $201,106 | $16,759 | $4,692 | $6,034 |
| Renters | $124,875 | $10,406 | $2,914 | $3,747 |
| 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. |
| Stony Brook University, NY | 8,775 | 110 | 9.6% |
| Wyandanch, NY | 11,925 | 125 | 25.1% |
| Central Islip, NY | 34,526 | 128 | 28.1% |
| Brentwood, NY | 64,448 | 129 | 29.5% |
| North Bay Shore, NY | 20,198 | 130 | 29.6% |
| Northport, NY | 7,478 | 165 | 65.1% |
| City | Population | Cost of Living Index | National Avg. |
| Sky Lake, FL | 7,478 | 104 | 4.3% |
| Winters, CA | 7,479 | 147 | 47.2% |
| Neptune Beach, FL | 7,476 | 138 | 38.3% |
| Ralston, NE | 7,481 | 95 | 4.7% |
| Devils Lake, ND | 7,473 | 88 | 11.7% |
| Northport, NY | 7,478 | 165 | 65.1% |