| Index | Marion | Montana | National |
| Cost of living | 113 | 102 | 100 |
| Groceries | 105 | 103 | 100 |
| Health care | 103 | 102 | 100 |
| Housing | 141 | 101 | 100 |
| Transportation | 98 | 100 | 100 |
| Utilities | 102 | 104 | 100 |
| Lifestyle & Entertainment | 103 | 100 | 100 |
| Household Items | 99 | 100 | 100 |
| Education & Childcare | 101 | 102 | 100 |

| Cost of living index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $81,252 | $6,771 | $1,896 | $2,438 |
| Renters | $90,408 | $7,534 | $2,109 | $2,713 |
| State | General Sales Tax | With Max Surtax |
| Montana | 0% | 0% |
| State | Income Tax (Low) | Income Tax (High) |
| Montana | 1% | 6.75% |
| City | Population | Cost of Living Index | National Avg. |
| Batavia, MT | 495 | 98 | 2.2% |
| Kila, MT | 420 | 109 | 8.7% |
| Lake Mary Ronan, MT | 46 | 115 | 15.1% |
| Little Bitterroot Lake, MT | 142 | 156 | 55.8% |
| Marion, MT | 1,067 | 113 | 13.3% |
| City | Population | Cost of Living Index | National Avg. |
| Plymouth, CA | 1,067 | 122 | 21.9% |
| Kraemer, LA | 1,067 | 86 | 13.7% |
| Williamsdale, OH | 1,067 | 90 | 10.0% |
| Redland, TX | 1,067 | 87 | 12.8% |
| Mountain View, WY | 1,067 | 99 | 1.0% |
| Marion, MT | 1,067 | 113 | 13.3% |