| Index | Carthage | South Dakota | National |
| Income per capita | $31,746 | $27,516 | $29,829 |
| Median household income | $52,794 | $52,078 | $55,322 |
| Median income owner occupied | $52,917 | $66,299 | $70,586 |
| Median income renter occupied | $52,768 | $30,800 | $35,192 |
| Median earnings male | $45,000 | $35,140 | $36,919 |
| Median earnings female | $23,750 | $24,451 | $26,250 |
| Unemployment rate | 2.9% | 2.8% | 4.7% |
| Poverty level | 7.7% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 3.7% | 3.7% |
| Manufacturing sector | 14.8% | 14.8% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 7.4% | 7.4% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 35.2% | 35.2% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 38.9% | 38.9% |
| City | Population | Household Income | National Avg. |
| Iroquois, SD | 378 | $54,706 | 1.1% |
| Artesian, SD | 181 | $43,750 | 20.9% |
| Howard, SD | 754 | $43,393 | 21.6% |
| Fedora, SD | 16 | $0 | 100.0% |
| Vilas, SD | 21 | $0 | 100.0% |
| Carthage, SD | 181 | $52,794 | 4.6% |
| City | Population | Household Income | National Avg. |
| Gulfcrest, AL | 181 | $0 | 100.0% |
| Humnoke, AR | 181 | $37,250 | 32.7% |
| Beaver Valley, AZ | 181 | $0 | 100.0% |
| Olancha, CA | 181 | $59,808 | 8.1% |
| Bristow, IA | 181 | $0 | 100.0% |
| Carthage, SD | 181 | $52,794 | 4.6% |