| Index | Roslyn | New York | National |
| Cost of living | 132 | 121 | 100 |
| Groceries | 107 | 106 | 100 |
| Health care | 108 | 110 | 100 |
| Housing | 185 | 144 | 100 |
| Transportation | 110 | 113 | 100 |
| Utilities | 114 | 112 | 100 |
| Lifestyle & Entertainment | 108 | 111 | 100 |
| Household Items | 104 | 106 | 100 |
| Education & Childcare | 119 | 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 | $174,186 | $14,516 | $4,064 | $5,226 |
| Renters | $157,532 | $13,128 | $3,676 | $4,726 |
| 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. |
| Greenville CDP (Greene County), NY | 616 | 106 | 6.1% |
| Wyandanch, NY | 11,925 | 125 | 25.1% |
| Hempstead, NY | 56,908 | 131 | 30.5% |
| North Lindenhurst, NY | 11,096 | 131 | 30.8% |
| Hartsdale, NY | 3,308 | 134 | 33.7% |
| Roslyn, NY | 2,998 | 132 | 32.2% |
| City | Population | Cost of Living Index | National Avg. |
| Kelly Ridge, CA | 2,998 | 118 | 17.6% |
| Bowling Green, FL | 2,998 | 86 | 14.1% |
| Chaffee, MO | 2,998 | 87 | 12.6% |
| Deer Lodge, MT | 2,998 | 91 | 8.9% |
| Womelsdorf, PA | 2,997 | 96 | 3.6% |
| Roslyn, NY | 2,998 | 132 | 32.2% |