| Index | Roslyn Heights | New York | National |
| Cost of living | 199 | 118 | 100 |
| Goods & Services | 120 | 108 | 100 |
| Groceries | 108 | 102 | 100 |
| Health care | 130 | 111 | 100 |
| Housing | 393 | 144 | 100 |
| Transportation | 100 | 107 | 100 |
| Utilities | 129 | 101 | 100 |


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| Cost of living index | |
| Goods & Services index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $245,873 | $20,489 | $5,737 | $7,377 |
| Renters | $63,111 | $5,259 | $1,472 | $1,894 |
| State | General Sales Tax | With Max Surtax |
| New York | 4% | 8.875% |
| State | Income Tax (Low) | Income Tax (High) |
| New York | 4% | 10.9% |
| Item | Roslyn Heights | National avg. | Difference |
| Haircut | $35.58 | $27.62 | 28.8% |
| Beauty Salon | $77.98 | $51.11 | 52.6% |
| Toothpaste | $3.98 | $4.09 | 2.8% |
| Shampoo | $1.75 | $1.54 | 13.5% |
| Movie | $18.17 | $12.88 | 41.1% |
| Yoga | $32.45 | $19.66 | 65.0% |
| Item | Roslyn Heights | National avg. | Difference |
| Ground Beef | $7.15 | $7.70 | 7.2% |
| Fried Chicken | $1.54 | $1.66 | 7.4% |
| Milk | $5.20 | $4.73 | 9.9% |
| Potatoes | $5.64 | $5.26 | 7.3% |
| Pizza | $13.65 | $12.76 | 7.0% |
| Beer | $10.84 | $10.55 | 2.8% |
| Item | Roslyn Heights | National avg. | Difference |
| Optometrist | $173.75 | $140.06 | 24.1% |
| Doctor | $292.23 | $153.82 | 90.0% |
| Dentist | $142.76 | $123.15 | 15.9% |
| Ibuprofen | $12.11 | $11.73 | 3.2% |
| Lipitor | $21.15 | $23.61 | 10.4% |
| Item | Roslyn Heights | National avg. | Difference |
| Home Price | $1,496,162.00 | $326,622.00 | 358.1% |
| Avg. Mortgage Payment | $5,693.50 | $2,480.25 | 129.6% |
| Apartment Rent | $3,465.00 | $1,444.00 | 140.0% |
| Item | Roslyn Heights | National avg. | Difference |
| Gasoline | $3.03 | $3.06 | 0.8% |
| Tire Balancing | $65.87 | $65.21 | 1.0% |
| Item | Roslyn Heights | National avg. | Difference |
| All Electricity | $319.28 | $220.12 | 45.0% |
| Phone | $201.32 | $195.71 | 2.9% |
| City | Population | Cost of Living Index | National Avg. |
| Wyandanch, NY | 11,925 | 130 | 30.2% |
| Hempstead, NY | 56,908 | 135 | 35.5% |
| North Lindenhurst, NY | 11,096 | 136 | 35.9% |
| Copiague, NY | 23,901 | 136 | 36.4% |
| Roslyn, NY | 2,998 | 137 | 37.1% |
| Roslyn Heights, NY | 6,857 | 199 | 99.4% |
| City | Population | Cost of Living Index | National Avg. |
| South Bay, FL | 6,857 | 92 | 7.7% |
| Church Hill, TN | 6,857 | 88 | 12.1% |
| Folcroft, PA | 6,856 | 99 | 0.7% |
| Lake Murray of Richland, SC | 6,856 | 122 | 22.5% |
| Contra Costa Centre, CA | 6,854 | 188 | 87.9% |
| Roslyn Heights, NY | 6,857 | 199 | 99.4% |