| Index | Dover | Illinois | National |
| Income per capita | $44,039 | $47,397 | $44,883 |
| Median household income | $54,270 | $88,967 | $81,333 |
| Median income owner occupied | $54,621 | $111,557 | $106,172 |
| Median income renter occupied | $0 | $52,117 | $52,080 |
| Median earnings male | $65,483 | $60,185 | $54,343 |
| Median earnings female | $55,231 | $40,368 | $38,439 |
| Unemployment rate | 1.8% | 6.6% | 4.9% |
| Poverty level | 17.0% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 6.5% | 6.5% |
| Manufacturing sector | 22.6% | 22.6% |
| Financial & insurance services | 6.5% | 6.5% |
| Wholesale & retail services | 6.5% | 6.5% |
| Public administration | 6.5% | 6.5% |
| Transportation, warehousing & utilities | 32.3% | 32.3% |
| Education, health & social services | 6.5% | 6.5% |
| Other | 12.9% | 12.9% |
| City | Population | Household Income | National Avg. |
| Arlington, IL | 216 | $108,388 | 33.3% |
| Mark, IL | 553 | $106,544 | 31.0% |
| Bureau Junction, IL | 229 | $99,126 | 21.9% |
| Dalzell, IL | 651 | $96,391 | 18.5% |
| Hennepin, IL | 856 | $94,881 | 16.7% |
| Dover, IL | 146 | $54,270 | 33.3% |
| City | Population | Household Income | National Avg. |
| Talladega Springs, AL | 146 | $68,542 | 15.7% |
| Christopher Creek, AZ | 146 | $95,631 | 17.6% |
| Kaibab, AZ | 146 | $50,878 | 37.4% |
| Mendes, GA | 146 | $149,073 | 83.3% |
| Belknap, IL | 146 | $63,719 | 21.7% |
| Dover, IL | 146 | $54,270 | 33.3% |