| Index | St. Onge | South Dakota | National |
| Income per capita | $0 | $41,166 | $44,883 |
| Median household income | $0 | $77,914 | $81,333 |
| Median income owner occupied | $0 | $100,475 | $106,172 |
| Median income renter occupied | $0 | $45,187 | $52,080 |
| Median earnings male | $0 | $52,540 | $54,343 |
| Median earnings female | $0 | $36,073 | $38,439 |
| Unemployment rate | 0.0% | 2.9% | 4.9% |
| Poverty level | 0.0% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | n/a | n/a |
| Manufacturing sector | n/a | n/a |
| Financial & insurance services | n/a | n/a |
| Wholesale & retail services | n/a | n/a |
| Public administration | n/a | n/a |
| Transportation, warehousing & utilities | n/a | n/a |
| Education, health & social services | n/a | n/a |
| Other | n/a | n/a |
| City | Population | Household Income | National Avg. |
| Blucksberg Mountain, SD | 452 | $165,632 | 103.6% |
| North Spearfish, SD | 2,322 | $96,754 | 19.0% |
| Newell, SD | 803 | $77,953 | 4.2% |
| Spearfish, SD | 12,076 | $74,946 | 7.9% |
| Belle Fourche, SD | 5,832 | $70,857 | 12.9% |
| St. Onge, SD | 26 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Mendeltna, AK | 26 | $0 | 100.0% |
| Beyerville, AZ | 26 | $0 | 100.0% |
| Butte Meadows, CA | 26 | $0 | 100.0% |
| Lazy Lake, FL | 26 | $378,821 | 365.8% |
| Blanchard, IA | 26 | $61,345 | 24.6% |
| St. Onge, SD | 26 | $0 | 100.0% |