| Index | Grenville | South Dakota | National |
| Income per capita | $26,320 | $27,516 | $29,829 |
| Median household income | $0 | $52,078 | $55,322 |
| Median income owner occupied | $0 | $66,299 | $70,586 |
| Median income renter occupied | $0 | $30,800 | $35,192 |
| Median earnings male | $0 | $35,140 | $36,919 |
| Median earnings female | $0 | $24,451 | $26,250 |
| Unemployment rate | 4.2% | 2.8% | 4.7% |
| Poverty level | 28.2% | 14.0% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 25.9% | 25.9% |
| Manufacturing sector | 3.7% | 3.7% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 14.8% | 14.8% |
| Public administration | 11.1% | 11.1% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 44.4% | 44.4% |
| City | Population | Household Income | National Avg. |
| Eden, SD | 141 | $250,001 | 351.9% |
| Roslyn, SD | 221 | $61,250 | 10.7% |
| Webster, SD | 1,681 | $40,707 | 26.4% |
| Ortley, SD | 58 | $33,750 | 39.0% |
| Waubay, SD | 530 | $33,393 | 39.6% |
| Grenville, SD | 71 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Chitina, AK | 71 | $0 | 100.0% |
| Twin Hills, AK | 71 | $19,688 | 64.4% |
| Wikieup, AZ | 71 | $84,250 | 52.3% |
| Kim, CO | 71 | $30,972 | 44.0% |
| Westwood, IA | 71 | $98,750 | 78.5% |
| Grenville, SD | 71 | $0 | 100.0% |
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