| Index | Custer | South Dakota | National |
| Income per capita | $30,651 | $27,516 | $29,829 |
| Median household income | $57,300 | $52,078 | $55,322 |
| Median income owner occupied | $71,000 | $66,299 | $70,586 |
| Median income renter occupied | $22,727 | $30,800 | $35,192 |
| Median earnings male | $37,741 | $35,140 | $36,919 |
| Median earnings female | $26,250 | $24,451 | $26,250 |
| Unemployment rate | 6.4% | 2.8% | 4.7% |
| Poverty level | 19.0% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 10.7% | 10.7% |
| Manufacturing sector | 8.7% | 8.7% |
| Financial & insurance services | 7.8% | 7.8% |
| Wholesale & retail services | 7.2% | 7.2% |
| Public administration | 5.8% | 5.8% |
| Transportation, warehousing & utilities | 12.2% | 12.2% |
| Education, health & social services | 16.9% | 16.9% |
| Other | 29.5% | 29.5% |
| City | Population | Household Income | National Avg. |
| Hill City, SD | 587 | $66,442 | 20.1% |
| Keystone, SD | 542 | $51,719 | 6.5% |
| Pringle, SD | 226 | $45,568 | 17.6% |
| Custer, SD | 2,314 | $57,300 | 3.6% |
| City | Population | Household Income | National Avg. |
| Mayer, MN | 2,313 | $100,958 | 82.5% |
| Brownsville, PA | 2,313 | $25,583 | 53.8% |
| Brighton, IL | 2,315 | $61,167 | 10.6% |
| Petersburg, IN | 2,315 | $53,241 | 3.8% |
| Collinsville, AL | 2,312 | $37,772 | 31.7% |
| Custer, SD | 2,314 | $57,300 | 3.6% |