| Index | Dahlgren | Illinois | National |
| Income per capita | $30,434 | $47,397 | $44,883 |
| Median household income | $73,858 | $88,967 | $81,333 |
| Median income owner occupied | $76,903 | $111,557 | $106,172 |
| Median income renter occupied | $0 | $52,117 | $52,080 |
| Median earnings male | $58,188 | $60,185 | $54,343 |
| Median earnings female | $30,651 | $40,368 | $38,439 |
| Unemployment rate | 5.2% | 6.6% | 4.9% |
| Poverty level | 17.7% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.7% | 10.7% |
| Manufacturing sector | 50.7% | 50.7% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 5.7% | 5.7% |
| Public administration | 6.4% | 6.4% |
| Transportation, warehousing & utilities | 2.1% | 2.1% |
| Education, health & social services | 12.9% | 12.9% |
| Other | 8.6% | 8.6% |
| City | Population | Household Income | National Avg. |
| Opdyke, IL | 313 | $96,244 | 18.3% |
| Ewing, IL | 326 | $92,563 | 13.8% |
| Bonnie, IL | 451 | $86,748 | 6.7% |
| McLeansboro, IL | 2,604 | $81,767 | 0.5% |
| Wayne City, IL | 967 | $76,033 | 6.5% |
| Dahlgren, IL | 716 | $73,858 | 9.2% |
| City | Population | Household Income | National Avg. |
| Aguanga, CA | 716 | $0 | 100.0% |
| Wabasso, FL | 716 | $59,390 | 27.0% |
| Murray, IA | 716 | $73,803 | 9.3% |
| Evarts, KY | 716 | $43,525 | 46.5% |
| Camden, MI | 716 | $73,417 | 9.7% |
| Dahlgren, IL | 716 | $73,858 | 9.2% |