| Index | St. Clair | Michigan | National |
| Cost of living | 96 | 91 | 100 |
| Groceries | 95 | 98 | 100 |
| Health care | 94 | 97 | 100 |
| Housing | 92 | 76 | 100 |
| Transportation | 99 | 96 | 100 |
| Utilities | 103 | 100 | 100 |
| Lifestyle & Entertainment | 97 | 96 | 100 |
| Household Items | 97 | 98 | 100 |
| Education & Childcare | 99 | 95 | 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 | $133,904 | $11,159 | $3,124 | $4,018 |
| Renters | $52,173 | $4,348 | $1,217 | $1,565 |
| State | General Sales Tax | With Max Surtax |
| Michigan | 6% | 6% |
| State | Income Tax (Low) | Income Tax (High) |
| Michigan | 4.25% | 4.25% |
| City | Population | Cost of Living Index | National Avg. |
| Port Huron, MI | 29,803 | 87 | 12.8% |
| Emmett, MI | 265 | 89 | 10.9% |
| Algonac, MI | 4,162 | 89 | 10.8% |
| Memphis, MI | 1,106 | 91 | 9.2% |
| Marine City, MI | 4,222 | 90 | 9.5% |
| St. Clair, MI | 5,549 | 96 | 4.2% |
| City | Population | Cost of Living Index | National Avg. |
| Brush, CO | 5,549 | 105 | 4.5% |
| Algona, IA | 5,549 | 93 | 6.9% |
| Town and Country, WA | 5,549 | 113 | 12.8% |
| Kaser, NY | 5,547 | 216 | 116.2% |
| River Ridge, FL | 5,546 | 109 | 9.4% |
| St. Clair, MI | 5,549 | 96 | 4.2% |