| Index | Northfield | Illinois | National |
| Cost of living | 179 | 98 | 100 |
| Goods & Services | 110 | 98 | 100 |
| Groceries | 104 | 100 | 100 |
| Health care | 116 | 102 | 100 |
| Housing | 349 | 95 | 100 |
| Transportation | 104 | 102 | 100 |
| Utilities | 95 | 98 | 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 | $220,349 | $18,362 | $5,141 | $6,611 |
| Renters | $116,517 | $9,710 | $2,719 | $3,496 |
| State | General Sales Tax | With Max Surtax |
| Illinois | 6.25% | 10.25% |
| State | Income Tax (Low) | Income Tax (High) |
| Illinois | 4.95% | 4.95% |
| Item | Northfield | National avg. | Difference |
| Haircut | $49.08 | $27.62 | 77.7% |
| Beauty Salon | $68.42 | $51.11 | 33.9% |
| Toothpaste | $4.13 | $4.09 | 0.9% |
| Shampoo | $1.56 | $1.54 | 1.2% |
| Movie | $17.42 | $12.88 | 35.3% |
| Yoga | $28.87 | $19.66 | 46.8% |
| Item | Northfield | National avg. | Difference |
| Ground Beef | $7.53 | $7.70 | 2.3% |
| Fried Chicken | $1.56 | $1.66 | 6.2% |
| Milk | $4.88 | $4.73 | 3.1% |
| Potatoes | $5.20 | $5.26 | 1.1% |
| Pizza | $13.97 | $12.76 | 9.5% |
| Beer | $10.56 | $10.55 | 0.1% |
| Item | Northfield | National avg. | Difference |
| Optometrist | $208.97 | $140.06 | 49.2% |
| Doctor | $194.67 | $153.82 | 26.6% |
| Dentist | $135.44 | $123.15 | 10.0% |
| Ibuprofen | $12.22 | $11.73 | 4.2% |
| Lipitor | $24.14 | $23.61 | 2.2% |
| Item | Northfield | National avg. | Difference |
| Home Price | $1,279,618.00 | $326,622.00 | 291.8% |
| Avg. Mortgage Payment | $2,929.74 | $2,480.25 | 18.1% |
| Apartment Rent | $3,599.00 | $1,444.00 | 149.2% |
| Item | Northfield | National avg. | Difference |
| Gasoline | $3.20 | $3.06 | 4.7% |
| Tire Balancing | $67.63 | $65.21 | 3.7% |
| Item | Northfield | National avg. | Difference |
| All Electricity | $188.44 | $220.12 | 14.4% |
| Phone | $213.97 | $195.71 | 9.3% |
| City | Population | Cost of Living Index | National Avg. |
| North Chicago, IL | 30,865 | 98 | 1.5% |
| Berkeley, IL | 5,266 | 104 | 4.2% |
| Stone Park, IL | 4,997 | 104 | 4.4% |
| Northlake, IL | 12,696 | 106 | 5.7% |
| Melrose Park, IL | 26,171 | 107 | 7.2% |
| Northfield, IL | 5,896 | 179 | 79.1% |
| City | Population | Cost of Living Index | National Avg. |
| El Cerrito CDP, CA | 5,896 | 142 | 41.8% |
| Newtown Grant, PA | 5,898 | 145 | 44.9% |
| Fellsmere, FL | 5,893 | 90 | 9.6% |
| The Village of Indian Hill, OH | 5,900 | 217 | 117.1% |
| Rancho Murieta, CA | 5,891 | 162 | 62.4% |
| Northfield, IL | 5,896 | 179 | 79.1% |