| Index | Sun River | Montana | National |
| Cost of living | 102 | 102 | 100 |
| Groceries | 104 | 103 | 100 |
| Health care | 102 | 102 | 100 |
| Housing | 100 | 101 | 100 |
| Transportation | 101 | 100 | 100 |
| Utilities | 105 | 104 | 100 |
| Lifestyle & Entertainment | 101 | 100 | 100 |
| Household Items | 99 | 100 | 100 |
| Education & Childcare | 106 | 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 | $72,133 | $6,011 | $1,683 | $2,164 |
| Renters | $0 | $0 | $0 | $0 |
| 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. |
| Power, MT | 158 | 93 | 7.1% |
| Vaughn, MT | 906 | 93 | 6.7% |
| Sun Prairie, MT | 1,649 | 94 | 5.6% |
| Fairfield, MT | 706 | 96 | 4.2% |
| Simms, MT | 349 | 98 | 2.2% |
| Sun River, MT | 42 | 102 | 1.8% |
| City | Population | Cost of Living Index | National Avg. |
| Edna Bay, AK | 42 | 115 | 14.9% |
| Tatitlek, AK | 42 | 98 | 2.4% |
| Egypt, AR | 42 | 78 | 22.0% |
| Conway, IA | 42 | 71 | 29.2% |
| Irvington, IA | 42 | 95 | 5.3% |
| Sun River, MT | 42 | 102 | 1.8% |