| Index | Dover | Illinois | National |
| Income per capita | $29,457 | $31,502 | $29,829 |
| Median household income | $36,618 | $59,196 | $55,322 |
| Median income owner occupied | $36,691 | $75,354 | $70,586 |
| Median income renter occupied | $0 | $34,488 | $35,192 |
| Median earnings male | $45,417 | $40,474 | $36,919 |
| Median earnings female | $37,917 | $27,197 | $26,250 |
| Unemployment rate | 1.7% | 5.3% | 4.7% |
| Poverty level | 17.0% | 14.0% | 15.1% |


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| 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 | 211 | $73,750 | 33.3% |
| Mark, IL | 534 | $72,500 | 31.1% |
| Bureau Junction, IL | 220 | $67,500 | 22.0% |
| Hennepin, IL | 835 | $64,750 | 17.0% |
| Dalzell, IL | 628 | $63,750 | 15.2% |
| Dover, IL | 141 | $36,618 | 33.8% |
| City | Population | Household Income | National Avg. |
| Talladega Springs, AL | 141 | $45,833 | 17.2% |
| Leipsic, DE | 141 | $36,250 | 34.5% |
| Mound Station, IL | 141 | $70,625 | 27.7% |
| Hardinsburg, IN | 141 | $31,042 | 43.9% |
| Fall River, KS | 141 | $39,688 | 28.3% |
| Dover, IL | 141 | $36,618 | 33.8% |