| Index | Frederick | South Dakota | National |
| Income per capita | $46,557 | $41,166 | $44,883 |
| Median household income | $104,155 | $77,914 | $81,333 |
| Median income owner occupied | $104,484 | $100,475 | $106,172 |
| Median income renter occupied | $42,646 | $45,187 | $52,080 |
| Median earnings male | $59,437 | $52,540 | $54,343 |
| Median earnings female | $40,887 | $36,073 | $38,439 |
| Unemployment rate | 2.8% | 2.9% | 4.9% |
| Poverty level | 10.9% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 24.6% | 24.6% |
| Manufacturing sector | 6.2% | 6.2% |
| Financial & insurance services | 3.1% | 3.1% |
| Wholesale & retail services | 26.2% | 26.2% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 6.2% | 6.2% |
| Education, health & social services | 4.6% | 4.6% |
| Other | 29.2% | 29.2% |
| City | Population | Household Income | National Avg. |
| Forbes, ND | 32 | $122,747 | 50.9% |
| Columbia, SD | 171 | $77,853 | 4.3% |
| Westport, SD | 136 | $71,472 | 12.1% |
| Ellendale, ND | 1,095 | $63,402 | 22.0% |
| Wetonka, SD | 5 | $0 | 100.0% |
| Frederick, SD | 180 | $104,155 | 28.1% |
| City | Population | Household Income | National Avg. |
| Seldovia Village, AK | 180 | $105,056 | 29.2% |
| Kellyton, AL | 180 | $75,618 | 7.0% |
| Antoine, AR | 180 | $45,503 | 44.1% |
| Alpine, AZ | 180 | $52,528 | 35.4% |
| Little River, CA | 180 | $3,735 | 95.4% |
| Frederick, SD | 180 | $104,155 | 28.1% |