| Index | Marathon | Iowa | National |
| Income per capita | $36,765 | $28,872 | $29,829 |
| Median household income | $43,750 | $54,570 | $55,322 |
| Median income owner occupied | $52,917 | $66,527 | $70,586 |
| Median income renter occupied | $33,333 | $30,828 | $35,192 |
| Median earnings male | $40,500 | $37,409 | $36,919 |
| Median earnings female | $20,625 | $25,115 | $26,250 |
| Unemployment rate | 10.9% | 3.1% | 4.7% |
| Poverty level | 12.6% | 12.3% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 11.9% | 11.9% |
| Manufacturing sector | 15.3% | 15.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 16.9% | 16.9% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 22.0% | 22.0% |
| Education, health & social services | 10.2% | 10.2% |
| Other | 23.7% | 23.7% |
| City | Population | Household Income | National Avg. |
| Webb, IA | 181 | $57,857 | 4.6% |
| Sioux Rapids, IA | 920 | $55,417 | 0.2% |
| Albert City, IA | 589 | $53,472 | 3.3% |
| Curlew, IA | 67 | $52,917 | 4.3% |
| Linn Grove, IA | 177 | $48,750 | 11.9% |
| Marathon, IA | 183 | $43,750 | 20.9% |
| City | Population | Household Income | National Avg. |
| Litchfield, CA | 183 | $54,904 | 0.8% |
| Dinosaur, CO | 183 | $36,607 | 33.8% |
| Washta, IA | 183 | $45,000 | 18.7% |
| Schneider, IN | 183 | $57,500 | 3.9% |
| Belleview, KY | 183 | $0 | 100.0% |
| Marathon, IA | 183 | $43,750 | 20.9% |
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