| Index | Gardiner | Montana | National |
| Cost of living | 115 | 102 | 100 |
| Groceries | 102 | 103 | 100 |
| Health care | 100 | 102 | 100 |
| Housing | 149 | 101 | 100 |
| Transportation | 99 | 100 | 100 |
| Utilities | 104 | 104 | 100 |
| Lifestyle & Entertainment | 102 | 100 | 100 |
| Household Items | 101 | 100 | 100 |
| Education & Childcare | 97 | 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 | $107,492 | $8,958 | $2,508 | $3,225 |
| Renters | $70,062 | $5,839 | $1,635 | $2,102 |
| 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. |
| Jardine, MT | 42 | 101 | 0.9% |
| Mammoth, WY | 85 | 101 | 0.9% |
| Corwin Springs, MT | 112 | 79 | 20.9% |
| Gardiner, MT | 915 | 115 | 15.2% |
| City | Population | Cost of Living Index | National Avg. |
| Papaikou, HI | 915 | 130 | 29.6% |
| Rockaway Beach, MO | 915 | 83 | 16.7% |
| New Waterford, OH | 915 | 81 | 18.5% |
| Lemont Furnace, PA | 915 | 79 | 20.8% |
| Argyle, WI | 915 | 85 | 14.5% |
| Gardiner, MT | 915 | 115 | 15.2% |