| Index | Iroquois | South Dakota | National |
| Income per capita | $34,081 | $41,166 | $44,883 |
| Median household income | $82,214 | $77,914 | $81,333 |
| Median income owner occupied | $85,067 | $100,475 | $106,172 |
| Median income renter occupied | $80,276 | $45,187 | $52,080 |
| Median earnings male | $60,137 | $52,540 | $54,343 |
| Median earnings female | $46,448 | $36,073 | $38,439 |
| Unemployment rate | 2.2% | 2.9% | 4.9% |
| Poverty level | 3.7% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 6.6% | 6.6% |
| Manufacturing sector | 22.6% | 22.6% |
| Financial & insurance services | 1.9% | 1.9% |
| Wholesale & retail services | 29.2% | 29.2% |
| Public administration | 0.9% | 0.9% |
| Transportation, warehousing & utilities | 6.6% | 6.6% |
| Education, health & social services | 13.2% | 13.2% |
| Other | 18.9% | 18.9% |
| City | Population | Household Income | National Avg. |
| Cavour, SD | 227 | $119,651 | 47.1% |
| De Smet, SD | 1,071 | $94,179 | 15.8% |
| Yale, SD | 166 | $93,122 | 14.5% |
| Carthage, SD | 186 | $79,722 | 2.0% |
| Bancroft, SD | 51 | $0 | 100.0% |
| Iroquois, SD | 391 | $82,214 | 1.1% |
| City | Population | Household Income | National Avg. |
| Minford, OH | 391 | $0 | 100.0% |
| Whites Landing, OH | 391 | $0 | 100.0% |
| Cloud Creek, OK | 391 | $125,601 | 54.4% |
| Custer City, OK | 391 | $68,579 | 15.7% |
| Kirkwood, PA | 391 | $98,782 | 21.5% |
| Iroquois, SD | 391 | $82,214 | 1.1% |