| Index | St. Charles | South Dakota | National |
| Income per capita | $12,248 | $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 | 25.0% | 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. |
| Butte, NE | 362 | $70,992 | 12.7% |
| Herrick, SD | 68 | $57,648 | 29.1% |
| Bonesteel, SD | 396 | $55,650 | 31.6% |
| Burke, SD | 725 | $51,050 | 37.2% |
| Fairfax, SD | 144 | $46,905 | 42.3% |
| St. Charles, SD | 8 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Platinum, AK | 8 | $0 | 100.0% |
| Ugashik, AK | 8 | $0 | 100.0% |
| Natural Bridge, AL | 8 | $0 | 100.0% |
| Charco, AZ | 8 | $0 | 100.0% |
| Mojave Ranch Estates, AZ | 8 | $0 | 100.0% |
| St. Charles, SD | 8 | $0 | 100.0% |