| Index | Helena West Side | Montana | National |
| Cost of living | 119 | 102 | 100 |
| Groceries | 102 | 103 | 100 |
| Health care | 101 | 102 | 100 |
| Housing | 158 | 101 | 100 |
| Transportation | 102 | 100 | 100 |
| Utilities | 102 | 104 | 100 |
| Lifestyle & Entertainment | 100 | 100 | 100 |
| Household Items | 101 | 100 | 100 |
| Education & Childcare | 103 | 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 | $149,151 | $12,429 | $3,480 | $4,475 |
| Renters | $55,127 | $4,594 | $1,286 | $1,654 |
| 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. |
| Marysville, MT | 73 | 97 | 3.3% |
| East Helena, MT | 1,731 | 102 | 2.0% |
| Helena Valley Southeast, MT | 8,816 | 106 | 5.8% |
| Helena, MT | 33,820 | 110 | 9.8% |
| Helena Valley Northwest, MT | 4,403 | 112 | 11.8% |
| Helena West Side, MT | 1,718 | 119 | 18.5% |
| City | Population | Cost of Living Index | National Avg. |
| Lakin, KS | 1,718 | 83 | 16.6% |
| Waterville, NY | 1,718 | 98 | 2.1% |
| Cheswick, PA | 1,718 | 95 | 5.1% |
| Clay, PA | 1,718 | 102 | 1.9% |
| Boulevard Gardens, FL | 1,717 | 110 | 9.8% |
| Helena West Side, MT | 1,718 | 119 | 18.5% |