| Index | St. Ignatius | Montana | National |
| Cost of living | 94 | 102 | 100 |
| Groceries | 105 | 103 | 100 |
| Health care | 103 | 102 | 100 |
| Housing | 75 | 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 | $66,123 | $5,510 | $1,543 | $1,984 |
| Renters | $44,539 | $3,712 | $1,039 | $1,336 |
| 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. |
| Kicking Horse, MT | 114 | 102 | 1.5% |
| Old Agency, MT | 62 | 102 | 1.5% |
| Ravalli, MT | 224 | 102 | 1.5% |
| Dixon, MT | 262 | 89 | 10.7% |
| Arlee, MT | 605 | 93 | 6.8% |
| St. Ignatius, MT | 809 | 94 | 6.4% |
| City | Population | Cost of Living Index | National Avg. |
| Hobson City, AL | 809 | 80 | 20.0% |
| McKenzie, AL | 809 | 76 | 24.4% |
| Eads, CO | 809 | 90 | 9.9% |
| Holly, CO | 809 | 86 | 14.1% |
| Ventura, NM | 809 | 79 | 20.5% |
| St. Ignatius, MT | 809 | 94 | 6.4% |