| Index | Plankinton | South Dakota | National |
| Income per capita | $49,167 | $41,166 | $44,883 |
| Median household income | $94,983 | $77,914 | $81,333 |
| Median income owner occupied | $111,806 | $100,475 | $106,172 |
| Median income renter occupied | $55,245 | $45,187 | $52,080 |
| Median earnings male | $61,229 | $52,540 | $54,343 |
| Median earnings female | $53,536 | $36,073 | $38,439 |
| Unemployment rate | 0.0% | 2.9% | 4.9% |
| Poverty level | 3.0% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 13.2% | 13.2% |
| Manufacturing sector | 23.5% | 23.5% |
| Financial & insurance services | 2.0% | 2.0% |
| Wholesale & retail services | 4.4% | 4.4% |
| Public administration | 2.0% | 2.0% |
| Transportation, warehousing & utilities | 11.8% | 11.8% |
| Education, health & social services | 6.4% | 6.4% |
| Other | 36.8% | 36.8% |
| City | Population | Household Income | National Avg. |
| White Lake, SD | 446 | $87,190 | 7.2% |
| Aurora Center, SD | 48 | $85,275 | 4.8% |
| Stickney, SD | 275 | $79,703 | 2.0% |
| Mount Vernon, SD | 514 | $68,919 | 15.3% |
| Storla, SD | 22 | $0 | 100.0% |
| Plankinton, SD | 730 | $94,983 | 16.8% |
| City | Population | Household Income | National Avg. |
| Hartford, IA | 730 | $92,309 | 13.5% |
| Howe, IN | 730 | $66,277 | 18.5% |
| Wilroads Gardens, KS | 730 | $119,744 | 47.2% |
| Hardwood Acres, MI | 730 | $147,184 | 81.0% |
| Bakersville, NC | 730 | $79,853 | 1.8% |
| Plankinton, SD | 730 | $94,983 | 16.8% |