| Index | Plains | Montana | National |
| Income per capita | $33,855 | $39,875 | $44,883 |
| Median household income | $35,387 | $71,326 | $81,333 |
| Median income owner occupied | $58,122 | $88,680 | $106,172 |
| Median income renter occupied | $27,479 | $45,249 | $52,080 |
| Median earnings male | $0 | $47,130 | $54,343 |
| Median earnings female | $23,964 | $32,153 | $38,439 |
| Unemployment rate | 0.4% | 3.8% | 4.9% |
| Poverty level | 19.8% | 14.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 16.0% | 16.0% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 36.1% | 36.1% |
| Public administration | 5.5% | 5.5% |
| Transportation, warehousing & utilities | 7.8% | 7.8% |
| Education, health & social services | 24.2% | 24.2% |
| Other | 10.5% | 10.5% |
| City | Population | Household Income | National Avg. |
| Weeksville, MT | 90 | $131,518 | 61.7% |
| St. Regis, MT | 215 | $62,172 | 23.6% |
| Paradise, MT | 118 | $51,947 | 36.1% |
| Hot Springs, MT | 646 | $26,068 | 67.9% |
| Camas, MT | 91 | $25,404 | 68.8% |
| Plains, MT | 1,039 | $35,387 | 56.5% |
| City | Population | Household Income | National Avg. |
| Carlton, MN | 1,039 | $65,187 | 19.9% |
| Eden Valley, MN | 1,039 | $68,630 | 15.6% |
| Linton, ND | 1,039 | $49,451 | 39.2% |
| Chapmanville, WV | 1,039 | $45,391 | 44.2% |
| Grande-Vallée, QC | 1,039 | n/a | |
| Plains, MT | 1,039 | $35,387 | 56.5% |