| Population | 184 |
| Square Miles | 138.49 |
| Population Density | 1.33 |
| Median Age | 51 |
| Median Household Income | $35,625 |
| Per Capita Income | $22,069 |
| Median Rent | $408 |
| Percent Renters | 12% |
| Median Monarch, MT 59463 For Sale Price: | $339,000 |
| Studio For Sale Median Price: | $120,000 |
| 1 Bedroom For Sale Median Price: | $117,133 |
| 2 Bedroom For Sale Median Price: | $450,000 |
| 3 Bedroom For Sale Median Price: | $339,000 |