| Index | Dahlgren | Illinois | National |
| Cost of living | 80 | 98 | 100 |
| Groceries | 97 | 100 | 100 |
| Health care | 94 | 100 | 100 |
| Housing | 42 | 95 | 100 |
| Transportation | 97 | 101 | 100 |
| Utilities | 94 | 99 | 100 |
| Lifestyle & Entertainment | 99 | 100 | 100 |
| Household Items | 99 | 100 | 100 |
| Education & Childcare | 99 | 100 | 100 |

| Cost of living index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $76,903 | $6,409 | $1,794 | $2,307 |
| Renters | $0 | $0 | $0 | $0 |
| State | General Sales Tax | With Max Surtax |
| Illinois | 6.25% | 10.25% |
| State | Income Tax (Low) | Income Tax (High) |
| Illinois | 4.95% | 4.95% |
| City | Population | Cost of Living Index | National Avg. |
| Keenes, IL | 54 | 97 | 3.1% |
| Sims, IL | 170 | 75 | 25.0% |
| Belle Rive, IL | 386 | 80 | 19.9% |
| West City, IL | 632 | 81 | 19.1% |
| Opdyke, IL | 313 | 83 | 17.1% |
| Dahlgren, IL | 716 | 80 | 19.6% |
| City | Population | Cost of Living Index | National Avg. |
| Aguanga, CA | 716 | 118 | 18.3% |
| Wabasso, FL | 716 | 110 | 9.6% |
| Murray, IA | 716 | 81 | 18.9% |
| Evarts, KY | 716 | 82 | 18.1% |
| Camden, MI | 716 | 83 | 16.6% |
| Dahlgren, IL | 716 | 80 | 19.6% |