| Index | Round Lake Heights | Illinois | National |
| Cost of living | 104 | 96 | 100 |
| Goods & Services | 107 | 97 | 100 |
| Groceries | 104 | 98 | 100 |
| Health care | 108 | 95 | 100 |
| Housing | 103 | 95 | 100 |
| Transportation | 107 | 103 | 100 |
| Utilities | 89 | 89 | 100 |
| 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 | $83,056 | $6,921 | $1,938 | $2,492 |
| Renters | $59,500 | $4,958 | $1,388 | $1,785 |
| 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 | Round Lake Heights | National avg. | Difference |
| Haircut | $33.69 | $24.26 | 38.9% |
| Beauty Salon | $53.44 | $45.56 | 17.3% |
| Toothpaste | $3.75 | $3.70 | 1.4% |
| Shampoo | $1.27 | $1.28 | 1.1% |
| Movie | $17.91 | $12.13 | 47.6% |
| Bowling | $24.58 | $18.00 | 36.6% |
| Item | Round Lake Heights | National avg. | Difference |
| Ground Beef | $5.28 | $5.84 | 9.5% |
| Fried Chicken | $1.42 | $1.57 | 9.7% |
| Milk | $4.87 | $4.67 | 4.3% |
| Potatoes | $4.90 | $4.93 | 0.7% |
| Pizza | $13.41 | $12.09 | 10.9% |
| Beer | $10.00 | $10.41 | 4.0% |
| Item | Round Lake Heights | National avg. | Difference |
| Optometrist | $118.27 | $125.68 | 5.9% |
| Doctor | $167.67 | $135.78 | 23.5% |
| Dentist | $128.22 | $113.29 | 13.2% |
| Ibuprofen | $10.97 | $10.65 | 2.9% |
| Lipitor | $382.34 | $468.60 | 18.4% |
| Item | Round Lake Heights | National avg. | Difference |
| Home Price | $164,600.00 | $184,700.00 | 10.9% |
| Avg. Mortgage Payment | $2,578.06 | $2,346.69 | 9.9% |
| Apartment Rent | $1,293.00 | $949.00 | 36.2% |
| Item | Round Lake Heights | National avg. | Difference |
| Gasoline | $3.56 | $3.46 | 2.7% |
| Tire Balancing | $70.87 | $59.92 | 18.3% |
| Item | Round Lake Heights | National avg. | Difference |
| All Electricity | $148.58 | $193.99 | 23.4% |
| Phone | $210.03 | $192.25 | 9.3% |
| City | Population | Cost of Living Index | National Avg. |
| Park City, IL | 7,636 | 84 | 15.8% |
| Lake Ivanhoe, WI | 398 | 95 | 5.5% |
| North Chicago, IL | 29,967 | 97 | 3.2% |
| Round Lake Park, IL | 7,744 | 97 | 2.8% |
| Waukegan, IL | 87,157 | 98 | 2.1% |
| Round Lake Heights, IL | 3,009 | 104 | 3.7% |
| City | Population | Cost of Living Index | National Avg. |
| Royston, GA | 3,009 | 86 | 13.5% |
| Moundville, AL | 3,008 | 93 | 7.4% |
| Afton, MN | 3,008 | 148 | 48.1% |
| Montgomery, MN | 3,008 | 96 | 3.6% |
| Gloverville, SC | 3,008 | 78 | 21.8% |
| Round Lake Heights, IL | 3,009 | 104 | 3.7% |
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