| Index | Flat Rock | Illinois | National |
| Cost of living | 84 | 96 | 100 |
| Goods & Services | 99 | 97 | 100 |
| Groceries | 98 | 98 | 100 |
| Health care | 131 | 95 | 100 |
| Housing | 42 | 95 | 100 |
| Transportation | 103 | 103 | 100 |
| Utilities | 107 | 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 | $40,952 | $3,413 | $955 | $1,229 |
| Renters | $43,125 | $3,594 | $1,006 | $1,294 |
| 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 | Flat Rock | National avg. | Difference |
| Haircut | $18.50 | $24.26 | 23.7% |
| Beauty Salon | $30.00 | $45.56 | 34.2% |
| Toothpaste | $3.71 | $3.70 | 0.3% |
| Shampoo | $1.24 | $1.28 | 2.9% |
| Movie | $9.63 | $12.13 | 20.6% |
| Bowling | $15.00 | $18.00 | 16.7% |
| Item | Flat Rock | National avg. | Difference |
| Ground Beef | $5.92 | $5.84 | 1.4% |
| Fried Chicken | $1.62 | $1.57 | 3.2% |
| Milk | $4.75 | $4.67 | 1.7% |
| Potatoes | $5.14 | $4.93 | 4.1% |
| Pizza | $13.25 | $12.09 | 9.6% |
| Beer | $9.97 | $10.41 | 4.2% |
| Item | Flat Rock | National avg. | Difference |
| Optometrist | $150.00 | $125.68 | 19.3% |
| Doctor | $146.67 | $135.78 | 8.0% |
| Dentist | $205.92 | $113.29 | 81.8% |
| Ibuprofen | $10.29 | $10.65 | 3.4% |
| Lipitor | $441.50 | $468.60 | 5.8% |
| Item | Flat Rock | National avg. | Difference |
| Home Price | $51,300.00 | $184,700.00 | 72.2% |
| Avg. Mortgage Payment | $1,778.87 | $2,346.69 | 24.2% |
| Apartment Rent | $705.00 | $949.00 | 25.7% |
| Item | Flat Rock | National avg. | Difference |
| Gasoline | $3.45 | $3.46 | 0.3% |
| Tire Balancing | $67.33 | $59.92 | 12.4% |
| Item | Flat Rock | National avg. | Difference |
| All Electricity | $216.89 | $193.99 | 11.8% |
| Phone | $190.03 | $192.25 | 1.2% |
| City | Population | Cost of Living Index | National Avg. |
| Emison, IN | 78 | 103 | 2.6% |
| Russellville, IL | 75 | 78 | 21.9% |
| Merom, IN | 191 | 81 | 19.5% |
| Oblong, IL | 1,520 | 83 | 17.2% |
| Bruceville, IN | 400 | 84 | 16.3% |
| Flat Rock, IL | 464 | 84 | 15.7% |
| City | Population | Cost of Living Index | National Avg. |
| Scammon Bay, AK | 464 | 92 | 7.7% |
| Dozier, AL | 464 | 79 | 20.9% |
| Allenspark, CO | 464 | 131 | 30.9% |
| Saguache, CO | 464 | 90 | 10.3% |
| Kenton, DE | 464 | 105 | 5.3% |
| Flat Rock, IL | 464 | 84 | 15.7% |
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