| Index | St. Clair | Ontario | National |
| Median household income | $100,524 | $87,353 | $82,436 |
| Unemployment rate | 7.5% | 4.2% | 6.4% |
| In labour force | 56.8% | 61.7% | 63.9% |
| Labour Type | Percent |
| Construction industry | 6.0% |
| Manufacturing sector | 8.7% |
| Financial & insurance services | 1.0% |
| Wholesale & retail services | 7.1% |
| Public administration | 2.1% |
| Transportation, warehousing & utilities | 3.4% |
| Education, health & social services | 9.6% |
| Other | 17.6% |
| City | Population | Household Income | National Avg. |
| Enniskillen, ON | 2,704 | $104,095 | 26.3% |
| Oil Springs, ON | 698 | $86,797 | 5.3% |
| Petrolia, ON | 6,108 | $82,686 | 0.3% |
| Sarnia 45, ON | 627 | $39,137 | 52.5% |
| St. Clair, ON | 14,919 | $100,524 | 21.9% |
| City | Population | Household Income | National Avg. |
| Kerman, CA | 14,920 | n/a | |
| Susanville, CA | 14,922 | n/a | |
| Ramsey, NJ | 14,915 | n/a | |
| Greeneville, TN | 14,938 | n/a | |
| Hershey, PA | 14,941 | n/a | |
| St. Clair, ON | 14,919 | $100,524 | 21.9% |