| Index | Simms | Montana | National |
| Income per capita | $37,273 | $39,875 | $44,883 |
| Median household income | $126,397 | $71,326 | $81,333 |
| Median income owner occupied | $124,538 | $88,680 | $106,172 |
| Median income renter occupied | $0 | $45,249 | $52,080 |
| Median earnings male | $87,243 | $47,130 | $54,343 |
| Median earnings female | $53,086 | $32,153 | $38,439 |
| Unemployment rate | 0.0% | 3.8% | 4.9% |
| Poverty level | 0.0% | 14.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 52.3% | 52.3% |
| Manufacturing sector | 29.5% | 29.5% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 4.5% | 4.5% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 13.6% | 13.6% |
| City | Population | Household Income | National Avg. |
| Fairfield, MT | 706 | $95,497 | 17.4% |
| Sun River, MT | 42 | $71,963 | 11.5% |
| Fort Shaw, MT | 144 | $0 | 100.0% |
| Simms, MT | 349 | $126,397 | 55.4% |
| City | Population | Household Income | National Avg. |
| St. Marks, FL | 349 | $90,789 | 11.6% |
| Keysville, GA | 349 | $71,542 | 12.0% |
| Montrose, GA | 349 | $81,701 | 0.5% |
| Duncombe, IA | 349 | $69,712 | 14.3% |
| Kempton, IN | 349 | $68,983 | 15.2% |
| Simms, MT | 349 | $126,397 | 55.4% |