| Index | Shelby | Montana | National |
| Income per capita | $48,586 | $39,875 | $44,883 |
| Median household income | $67,044 | $71,326 | $81,333 |
| Median income owner occupied | $98,919 | $88,680 | $106,172 |
| Median income renter occupied | $39,850 | $45,249 | $52,080 |
| Median earnings male | $42,778 | $47,130 | $54,343 |
| Median earnings female | $21,090 | $32,153 | $38,439 |
| Unemployment rate | 0.8% | 3.8% | 4.9% |
| Poverty level | 10.3% | 14.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 3.2% | 3.2% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 14.5% | 14.5% |
| Public administration | 15.4% | 15.4% |
| Transportation, warehousing & utilities | 14.0% | 14.0% |
| Education, health & social services | 26.2% | 26.2% |
| Other | 26.6% | 26.6% |
| City | Population | Household Income | National Avg. |
| Shelby, MT | 2,966 | $67,044 | 17.6% |
| City | Population | Household Income | National Avg. |
| Brandenburg, KY | 2,966 | $72,428 | 10.9% |
| Fowlerville, MI | 2,965 | $74,317 | 8.6% |
| Bedford Hills, NY | 2,965 | $92,670 | 13.9% |
| Lodi, OH | 2,965 | $64,371 | 20.9% |
| North Cypress-Langford, MB | 2,965 | n/a | |
| Shelby, MT | 2,966 | $67,044 | 17.6% |