| Index | Big Rock | Illinois | National |
| Cost of living | 110 | 96 | 100 |
| Goods & Services | 106 | 97 | 100 |
| Groceries | 97 | 98 | 100 |
| Health care | 98 | 95 | 100 |
| Housing | 129 | 95 | 100 |
| Transportation | 114 | 103 | 100 |
| Utilities | 80 | 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 | $108,194 | $9,016 | $2,524 | $3,246 |
| Renters | $84,861 | $7,072 | $1,980 | $2,546 |
| 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 | Big Rock | National avg. | Difference |
| Haircut | $19.72 | $24.26 | 18.7% |
| Beauty Salon | $37.22 | $45.56 | 18.3% |
| Toothpaste | $3.72 | $3.70 | 0.6% |
| Shampoo | $1.32 | $1.28 | 3.3% |
| Movie | $9.99 | $12.13 | 17.7% |
| Bowling | $16.00 | $18.00 | 11.1% |
| Item | Big Rock | National avg. | Difference |
| Ground Beef | $5.94 | $5.84 | 1.8% |
| Fried Chicken | $1.39 | $1.57 | 11.8% |
| Milk | $4.55 | $4.67 | 2.5% |
| Potatoes | $5.08 | $4.93 | 3.0% |
| Pizza | $10.69 | $12.09 | 11.6% |
| Beer | $9.61 | $10.41 | 7.7% |
| Item | Big Rock | National avg. | Difference |
| Optometrist | $86.67 | $125.68 | 31.0% |
| Doctor | $110.00 | $135.78 | 19.0% |
| Dentist | $82.00 | $113.29 | 27.6% |
| Ibuprofen | $10.17 | $10.65 | 4.5% |
| Lipitor | $511.00 | $468.60 | 9.0% |
| Item | Big Rock | National avg. | Difference |
| Home Price | $247,200.00 | $184,700.00 | 33.8% |
| Avg. Mortgage Payment | $1,316.57 | $2,346.69 | 43.9% |
| Apartment Rent | $1,104.00 | $949.00 | 16.3% |
| Item | Big Rock | National avg. | Difference |
| Gasoline | $3.52 | $3.46 | 1.7% |
| Tire Balancing | $45.00 | $59.92 | 24.9% |
| Item | Big Rock | National avg. | Difference |
| All Electricity | $156.87 | $193.99 | 19.1% |
| Phone | $198.03 | $192.25 | 3.0% |
| City | Population | Cost of Living Index | National Avg. |
| Leland, IL | 932 | 97 | 3.5% |
| Waterman, IL | 1,738 | 93 | 7.4% |
| DeKalb, IL | 42,961 | 93 | 7.2% |
| Somonauk, IL | 2,027 | 100 | 0.3% |
| Millington, IL | 662 | 100 | 0.0% |
| Big Rock, IL | 1,271 | 110 | 9.6% |
| City | Population | Cost of Living Index | National Avg. |
| Susitna North, AK | 1,271 | 112 | 12.3% |
| Inman, KS | 1,271 | 89 | 10.7% |
| Renville, MN | 1,271 | 87 | 13.0% |
| Stanberry, MO | 1,271 | 81 | 18.8% |
| Fayette, OH | 1,271 | 84 | 15.5% |
| Big Rock, IL | 1,271 | 110 | 9.6% |
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