| Index | Fairfax | South Dakota | National |
| Income per capita | $41,204 | $41,166 | $44,883 |
| Median household income | $46,905 | $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 | $22,773 | $36,073 | $38,439 |
| Unemployment rate | 0.0% | 2.9% | 4.9% |
| Poverty level | 19.6% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 8.9% | 8.9% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 44.4% | 44.4% |
| Public administration | 6.7% | 6.7% |
| Transportation, warehousing & utilities | 4.4% | 4.4% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 35.6% | 35.6% |
| City | Population | Household Income | National Avg. |
| Butte, NE | 362 | $70,992 | 12.7% |
| Spencer, NE | 353 | $60,601 | 25.5% |
| Bonesteel, SD | 396 | $55,650 | 31.6% |
| Naper, NE | 85 | $37,532 | 53.9% |
| St. Charles, SD | 8 | $0 | 100.0% |
| Fairfax, SD | 144 | $46,905 | 42.3% |
| City | Population | Household Income | National Avg. |
| Reader, AR | 144 | $23,135 | 71.6% |
| East Shore, CA | 144 | $144,824 | 78.1% |
| Jersey, GA | 144 | $0 | 100.0% |
| Bernard, IA | 144 | $75,249 | 7.5% |
| Brunsville, IA | 144 | $94,934 | 16.7% |
| Fairfax, SD | 144 | $46,905 | 42.3% |