| Index | Sidney | Montana | National |
| Income per capita | $43,815 | $39,875 | $44,883 |
| Median household income | $88,139 | $71,326 | $81,333 |
| Median income owner occupied | $123,420 | $88,680 | $106,172 |
| Median income renter occupied | $59,261 | $45,249 | $52,080 |
| Median earnings male | $64,766 | $47,130 | $54,343 |
| Median earnings female | $46,342 | $32,153 | $38,439 |
| Unemployment rate | 1.0% | 3.8% | 4.9% |
| Poverty level | 6.7% | 14.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 19.4% | 19.4% |
| Manufacturing sector | 6.9% | 6.9% |
| Financial & insurance services | 2.9% | 2.9% |
| Wholesale & retail services | 15.9% | 15.9% |
| Public administration | 1.0% | 1.0% |
| Transportation, warehousing & utilities | 12.0% | 12.0% |
| Education, health & social services | 4.7% | 4.7% |
| Other | 37.2% | 37.2% |
| City | Population | Household Income | National Avg. |
| Fairview, MT | 1,015 | $116,830 | 43.6% |
| Crane, MT | 257 | $105,169 | 29.3% |
| East Fairview, ND | 95 | $0 | 100.0% |
| Sidney, MT | 6,559 | $88,139 | 8.4% |
| City | Population | Household Income | National Avg. |
| Brunswick, MD | 6,559 | $125,203 | 53.9% |
| Fowler, CA | 6,556 | $88,140 | 8.4% |
| Hamlet, NC | 6,555 | $55,290 | 32.0% |
| Kingston, RI | 6,555 | $167,925 | 106.5% |
| Westlock County, AB | 6,565 | n/a | |
| Sidney, MT | 6,559 | $88,139 | 8.4% |