| Index | Sun Prairie | Montana | National |
| Cost of living | 94 | 102 | 100 |
| Groceries | 104 | 103 | 100 |
| Health care | 102 | 102 | 100 |
| Housing | 75 | 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 | $69,715 | $5,810 | $1,627 | $2,092 |
| 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. |
| Gibson Flats, MT | 212 | 103 | 2.5% |
| Black Eagle, MT | 868 | 92 | 8.0% |
| Stockett, MT | 196 | 92 | 7.9% |
| Power, MT | 158 | 93 | 7.1% |
| Vaughn, MT | 906 | 93 | 6.7% |
| Sun Prairie, MT | 1,649 | 94 | 5.6% |
| City | Population | Cost of Living Index | National Avg. |
| Dauphin Island, AL | 1,649 | 113 | 12.7% |
| Vienna, IL | 1,649 | 83 | 16.6% |
| Middleburg, PA | 1,649 | 91 | 8.8% |
| Penn State Erie (Behrend), PA | 1,649 | 99 | 1.2% |
| Olivet, TN | 1,649 | 86 | 14.4% |
| Sun Prairie, MT | 1,649 | 94 | 5.6% |