| Index | Oak Grove | Illinois | National |
| Cost of living index | 78 | 98 | 100 |
| Index | Oak Grove | Illinois | National |
| Goods & Services index | 94 | 98 | 100 |
| Groceries index | 103 | 97 | 100 |
| Health care index | 103 | 100 | 100 |
| Housing index | 29 | 95 | 100 |
| Transportation index | 113 | 112 | 100 |
| Utilities index | 99 | 97 | 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 | $27,727 | $2,311 | $647 | $832 |
| Renters | $48,214 | $4,018 | $1,125 | $1,447 |
| 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 | Oak Grove | National avg. | Difference |
| Haircut | $12.67 | $17.49 | 27.6% |
| Beauty Salon | $31.75 | $38.17 | 16.8% |
| Toothpaste | $3.09 | $2.32 | 33.1% |
| Shampoo | $0.95 | $1.01 | 6.1% |
| Movie | $10.72 | $10.72 | 0.0% |
| Bowling | $13.33 | $13.86 | 3.8% |
| Item | Oak Grove | National avg. | Difference |
| Ground Beef | $3.27 | $3.90 | 16.2% |
| Fried Chicken | $1.69 | $1.40 | 21.1% |
| Milk | $2.52 | $1.96 | 28.4% |
| Potatoes | $2.64 | $3.18 | 17.1% |
| Pizza | $12.95 | $10.39 | 24.6% |
| Beer | $8.99 | $9.23 | 2.6% |
| Item | Oak Grove | National avg. | Difference |
| Optometrist | $87.50 | $106.34 | 17.7% |
| Doctor | $130.50 | $115.25 | 13.2% |
| Dentist | $97.50 | $98.38 | 0.9% |
| Ibuprofen | $8.49 | $9.26 | 8.3% |
| Lipitor | $515.99 | $466.47 | 10.6% |
| Item | Oak Grove | National avg. | Difference |
| Home Price | $10,400.00 | $184,700.00 | 94.4% |
| Avg. Mortgage Payment | $950.53 | $1,273.32 | 25.4% |
| Apartment Rent | $781.00 | $949.00 | 17.7% |
| Item | Oak Grove | National avg. | Difference |
| Gasoline | $2.67 | $2.59 | 2.9% |
| Tire Balancing | $65.32 | $48.90 | 33.6% |
| Item | Oak Grove | National avg. | Difference |
| All Electricity | $159.75 | $167.60 | 4.7% |
| Phone | $188.52 | $163.42 | 15.4% |
| City, State | Population | Cost of Living Index | National Avg. |
| Matherville, IL | 853 | 83 | -17% |
| Cleveland, IL | 178 | 84 | -16% |
| Viola, IL | 854 | 86 | -14% |
| Stockton, IA | 235 | 86 | -14% |
| Aledo, IL | 3,463 | 86 | -14% |
| Oak Grove, IL | 562 | 78 | -22% |
| City, State | Population | Cost of Living Index | National Avg. |
| Belle Haven town, VA | 562 | 101 | 1% |
| St. Francis, SD | 562 | 74 | -26% |
| Nunn, CO | 562 | 98 | -2% |
| Thunderbird Bay, TX | 562 | 79 | -21% |
| Spelter, WV | 562 | 79 | -21% |
| Oak Grove, IL | 562 | 78 | -22% |