| Index | Lake Preston | South Dakota | National |
| Income per capita | $50,895 | $41,166 | $44,883 |
| Median household income | $77,705 | $77,914 | $81,333 |
| Median income owner occupied | $97,450 | $100,475 | $106,172 |
| Median income renter occupied | $39,517 | $45,187 | $52,080 |
| Median earnings male | $52,470 | $52,540 | $54,343 |
| Median earnings female | $54,299 | $36,073 | $38,439 |
| Unemployment rate | 0.0% | 2.9% | 4.9% |
| Poverty level | 14.3% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 24.5% | 24.5% |
| Manufacturing sector | 23.8% | 23.8% |
| Financial & insurance services | 3.3% | 3.3% |
| Wholesale & retail services | 7.3% | 7.3% |
| Public administration | 2.0% | 2.0% |
| Transportation, warehousing & utilities | 7.3% | 7.3% |
| Education, health & social services | 5.3% | 5.3% |
| Other | 26.5% | 26.5% |
| City | Population | Household Income | National Avg. |
| Lake Poinsett, SD | 496 | $124,159 | 52.7% |
| De Smet, SD | 1,071 | $94,179 | 15.8% |
| Arlington, SD | 1,035 | $82,574 | 1.5% |
| Badger, SD | 98 | $76,979 | 5.4% |
| Oldham, SD | 135 | $66,447 | 18.3% |
| Lake Preston, SD | 461 | $77,705 | 4.5% |
| City | Population | Household Income | National Avg. |
| Avery, CA | 461 | $167,464 | 105.9% |
| Marquette, IA | 461 | $58,671 | 27.9% |
| Wesley, IA | 461 | $85,211 | 4.8% |
| Altura, MN | 461 | $91,631 | 12.7% |
| West Alton, MO | 461 | $71,225 | 12.4% |
| Lake Preston, SD | 461 | $77,705 | 4.5% |