| Index | Carthage | South Dakota | National |
| Income per capita | $46,680 | $41,166 | $44,883 |
| Median household income | $79,722 | $77,914 | $81,333 |
| Median income owner occupied | $79,100 | $100,475 | $106,172 |
| Median income renter occupied | $77,985 | $45,187 | $52,080 |
| Median earnings male | $66,832 | $52,540 | $54,343 |
| Median earnings female | $34,435 | $36,073 | $38,439 |
| Unemployment rate | 3.0% | 2.9% | 4.9% |
| Poverty level | 7.7% | 14.0% | 15.1% |

| 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 | 391 | $82,214 | 1.1% |
| Artesian, SD | 189 | $64,738 | 20.4% |
| Howard, SD | 775 | $64,710 | 20.4% |
| Fedora, SD | 16 | $0 | 100.0% |
| Vilas, SD | 21 | $0 | 100.0% |
| Carthage, SD | 186 | $79,722 | 2.0% |
| City | Population | Household Income | National Avg. |
| Gulfcrest, AL | 186 | $0 | 100.0% |
| Camptonville, CA | 186 | $144,926 | 78.2% |
| Fostoria, IA | 186 | $112,508 | 38.3% |
| Green Mountain, IA | 186 | $72,934 | 10.3% |
| Webb, IA | 186 | $85,118 | 4.7% |
| Carthage, SD | 186 | $79,722 | 2.0% |